Adrenal insufficiency - Symptoms & Causes

Adrenal insufficiency - Symptoms & Causes

Edited By Irshad Anwar | Updated on Jul 02, 2025 05:14 PM IST

Adrenal insufficiency is a disease that occurs in the adrenal gland when it doesn't secrete the required amount of “cortisol,” which helps to regulate metabolism and cardiovascular function, and aldosterone. Adrenal controls the body's blood pressure and maintains the balance of salt and water. Other names for this are “Addison’s disease” or “hypocortisolism.” An autoimmune reaction causes it. As the function of the adrenal glands is to produce the hormones responsible for survival, when the hormones are not released in the required amount, this leads to this disorder. Adrenal glands are one of the important biology topics from the chapter Chemical Coordination and Integration CBSE class 11. It has a 2-3% weightage in the total marks in the entrance exams like NEET, Paramedical, and Pharmacy.

This Story also Contains
  1. Causes of Adrenal Insufficiency
  2. Types of Adrenal Insufficiency
  3. Detection of Adrenal Insufficiency
  4. Symptoms of Adrenal Insufficiency
  5. Treatment of Adrenal Insufficiency
  6. Tips, Tricks, and Strategies to Prepare for Adrenal Insufficiency
  7. Types of questions asked on Adrenal Insufficiency in Different Exams
  8. Weightage of Adrenal Insufficiency in Different Entrance Exams
  9. Recommended Video on Adrenal Insufficiency

Causes of Adrenal Insufficiency

Type

Reason

Explanation

Primary causes

Autoimmune Disorders

  • Adrenal insufficiency can lead to autoimmune disorders like Addison’s disease.


Infections

  • Due to insufficiency of adrenal, you can also have diseases like tuberculosis and fungal infections that can damage the adrenal gland.


Cancer

  • Due to the imbalance of adrenal hormones, it can also lead to cancer in the adrenal glands.


Genetic disorders

  • There can be genetic conditions that affect adrenal gland production. This often leads to adrenal insufficiency.

Secondary causes

Long-term use of medications

  • Long-term use of medicines and certain drugs leads to the weakening of adrenal function.

  • Due to this, there is adrenal insufficiency.


Pituitary gland issues

  • Certain tumour removal surgeries or radiation can damage the pituitary gland.

  • This leads to reducing hormone signals to the adrenal gland which further results in adrenal insufficiency.

Tertiary cause

Hypothalamus problems

  • There can be hormonal signal problems from the hypothalamus related to tumours or trauma. This can lead to adrenal insufficiency.

Other risking factors

Genetical history of auto union disorders

  • If there has been a family history of developing autoimmune diseases related to adrenal insufficiency.

  • This can also be one of the affecting factors.


Surgery or radiation near the brain

  • Surgical processes can also affect the pituitary or hypothalamus signals.

  • Especially the area near the brain due to the radiation.

  • This reduces hormone production and leads to Adrenal Insufficiency.


Use of steroids

  • Regular use of steroids can also suppress the adrenal gland activity.


Types of Adrenal Insufficiency

There are three types of adrenal insufficiency. They are described below.

Type

Reason

Explanation

Primary adrenal insufficiency

Damage in the adrenal glands

  • Adrenal glands do not produce enough cortisol or aldosterone to meet the body's requirements.

Secondary adrenal insufficiency

The issue with the pituitary gland

  • The pituitary gland fails to produce enough ACTH which is responsible for stimulating the production of cortisol in the adrenal gland.

  • This further leads to adrenal insufficiency.


Tertiary Adrenal insufficiency

The problem in the hypothalamus

  • A condition where the hypothalamus fails to produce enough CRH for the body and ultimately results in Adrenal Insufficiency.


Detection of Adrenal Insufficiency

Down below some of the common methods are discussed using which you can detect the adrenal insufficiency in your body.

Testing method

Purpose

Blood Tests

  • Checks the adrenaline level in the body

ACTH stimulation Test

  • Checks the response of the adrenaline gland

Imaging test

  • Checks for any abnormality or damage in the adrenal gland

Other diagnostic tools

  • Detects if there is any imbalance of electrolytes or glucose in the body.


Symptoms of Adrenal Insufficiency

The common symptoms of this disease include:

  • Weakness

  • Fatigue

  • Dizziness

  • Vomiting

  • Weight loss

  • Lack of appetite

  • Muscle aches

  • Fluid loss

  • Diarrhea

  • Low blood pressure

  • Low glucose levels

  • Irregular menstrual cycle

  • Abdominal pain

Treatment of Adrenal Insufficiency

There are effective treatment methods for adrenal and sufficiency which is very important for restoring the hormonal balance in the body. You can go for therapy which can be compensation for deficient hormones that the adrenal gland is unable to produce.

There are other methods such as regular monitoring and tracking of hormone levels apart from this there is daily medication which will also help you accordingly. Some of the general treatment methods for adrenal insufficiency are discussed below:

  • Hormone Replacement Therapy: There are daily medications that help to replace missing cortisol and aldosterone.

  • Checking Upon Hormone Level: There are regular blood tests that help to track down the hormone level and then there is lifelong hormone management for chronic adrenal insufficiency.

  • Lifestyle And Diet: One of the general management adrenals balances high sodium diet for those individuals who have Aldosterone insufficiency.

Tips, Tricks, and Strategies to Prepare for Adrenal Insufficiency

It becomes hard to remember everything in a single click. We have dispatched some of the bricks below which you can use to keep important points of adrenal insufficiency in mind.

ADDISON: Autoimmune attack

  • Autoimmune

  • Damage cortisol

  • Damage to adrenal glands

  • Insufficient aldosterone

  • Symptoms ( fatigue, weakness)

  • Ongoing treatment

  • Need for monitoring

NEET Highest Scoring Chapters & Topics
Know Most Scoring Concepts in NEET 2024 Based on Previous Year Analysis.
Know More

ACTH = Adrenal Call to Action

Three A’s

  • Autoimmune

  • Addison's

  • Activity

Types of questions asked on Adrenal Insufficiency in Different Exams

During the preparation for several exams, students may come across different types of questions from the topic Adrenal Insufficiency. They are discussed below.

Exam type

Types of questions asked

CBSE

  • Definition of adrenal insufficiency ( Addison's Diseases) and its symptoms.

  • Difference between adrenal insufficiency and other endocrinological disorders.

NEET

  • Hormonal test and diagnostic methods.

  • Detailed discussion of adrenal insufficiency and its causes.

  • Treatment and other medications related to it.

Paramedical

  • Management of adrenal insufficiency disorders.

  • Importance of adrenal glands.



Weightage of Adrenal Insufficiency in Different Entrance Exams

Exam

Weightage

CBSE

5%

NEET

7%

Paramedical

4%

Pharmacy

6%


Also Read


Recommended Video on Adrenal Insufficiency





Frequently Asked Questions (FAQs)

1. How is adrenal insufficiency diagnosed?

Adrenal insufficiency can be diagnosed by the following tests:

  • Blood and urine tests: These tests find the cause of that disorder and also find the level of adrenal hormones.

Imaging test: This test includes tomography, X-rays, ultrasound, and magnetic resonance imaging (MRI).

2. How is adrenal insufficiency treated?

It can be treated with the help of medicines given by the doctor that replace the hormones that are not working properly in the body. The doctor will also recommend a dosage based on the situation, such as during surgery, pregnancy, or any type of illness.

3. What are the complications of adrenal insufficiency?

There are many complications of adrenal insufficiency, like

  • Shock

  • Seizures

  • Coma

  • Dehydration

  • High fever

4. What type of food do we need to take to prevent adrenal insufficiency?

Adrenal insufficiency can be treated by taking good, nutrition-rich foods; they need to take a high sodium diet, and sometimes, if there is a need for replacement of cortisol, they need to take plenty of calcium and vitamin D foods.

5. What are the safety measures we need to follow to prevent adrenal insufficiency?

The following safety measures must be taken to avoid this disease.

  • Visit the doctor if there is any illness, diarrhea, or high fever.

  • Taking the medicines properly as suggested by the doctor.

  • Carry a medical alert card.

  • Consult a doctor if there is an emergency.

6. What is the main cause of adrenal insufficiency?

The main reason for adrenal insufficiency is an autoimmune disorder in the adrenal gland.  This leads to insufficient production of the hormone.  

7. What are the symptoms of adrenal insufficiency in adults?

The symptoms of adrenal insufficiency in adults are weakness, weight loss, low blood pressure, and abdominal pain.  

8. How can you fix adrenal insufficiency?

You can fix adrenal insufficiency by going through treatment hormone replacement therapy. It has medications that contain the deficient hormone to restore the hormonal balance of the body.  

9. What is the first symptom of adrenal crisis?

Fatigue and weakness are the first symptoms of an adrenal crisis in the body.  

10. What causes primary adrenal insufficiency (Addison's disease)?
Primary adrenal insufficiency is often caused by autoimmune destruction of the adrenal glands. Other causes include infections (like tuberculosis), genetic disorders, or metastatic cancer affecting the adrenal glands.
11. Can medications cause adrenal insufficiency?
Yes, long-term use of glucocorticoids (like prednisone) can suppress the body's natural cortisol production, leading to secondary adrenal insufficiency when the medication is stopped abruptly.
12. What is the link between adrenal insufficiency and autoimmune disorders?
Primary adrenal insufficiency (Addison's disease) is often caused by autoimmune destruction of the adrenal glands. People with one autoimmune disorder are at higher risk of developing others, so Addison's disease can be associated with other autoimmune conditions.
13. Why do people with adrenal insufficiency often experience dizziness upon standing?
Dizziness upon standing (orthostatic hypotension) occurs due to low blood volume and blood pressure, caused by insufficient aldosterone. This hormone helps maintain blood volume and pressure by regulating sodium retention.
14. What is the connection between adrenal insufficiency and anemia?
Adrenal insufficiency can sometimes lead to mild anemia. This is partly due to the role of cortisol in red blood cell production and the overall impact of the condition on the body's metabolic processes.
15. How does adrenal insufficiency affect the balance between sodium and potassium in the body?
In adrenal insufficiency, particularly when aldosterone is low, the body loses too much sodium and retains too much potassium. This can lead to hyponatremia (low sodium) and hyperkalemia (high potassium), affecting various bodily functions.
16. What is the relationship between adrenal insufficiency and diabetes?
Cortisol counteracts insulin, raising blood sugar. In adrenal insufficiency, this balance is disrupted, potentially leading to hypoglycemia. However, treating adrenal insufficiency with glucocorticoids can sometimes unmask or worsen diabetes.
17. Can adrenal insufficiency cause changes in hair and skin?
Yes, adrenal insufficiency can cause skin hyperpigmentation, particularly in Addison's disease. It can also lead to loss of body hair, dry skin, and in some cases, vitiligo (patches of skin losing pigment).
18. How does adrenal insufficiency impact the circadian rhythm?
Cortisol normally follows a daily (circadian) rhythm, peaking in the morning and declining throughout the day. In adrenal insufficiency, this rhythm is disrupted, potentially affecting sleep-wake cycles, energy levels, and other bodily functions that follow circadian patterns.
19. How does adrenal insufficiency impact protein metabolism?
Cortisol plays a role in protein metabolism. In adrenal insufficiency, there may be increased protein breakdown, contributing to muscle weakness and weight loss.
20. How does cortisol deficiency affect the body?
Cortisol deficiency can lead to fatigue, weakness, weight loss, low blood sugar, nausea, and decreased stress tolerance. Cortisol helps regulate metabolism, blood pressure, and the body's response to stress.
21. What are the early symptoms of adrenal insufficiency?
Early symptoms often include fatigue, weakness, loss of appetite, weight loss, and abdominal pain. These symptoms can be vague and develop gradually, making early diagnosis challenging.
22. How does skin pigmentation change in Addison's disease?
In primary adrenal insufficiency (Addison's disease), increased production of melanocyte-stimulating hormone can cause hyperpigmentation, particularly in sun-exposed areas, scars, and skin folds.
23. Why do people with adrenal insufficiency often crave salt?
Salt craving is common in adrenal insufficiency due to low aldosterone levels. Aldosterone helps retain sodium, so when it's low, the body loses more sodium, leading to a craving for salty foods to replenish sodium levels.
24. What role does aldosterone play in adrenal insufficiency?
Aldosterone regulates sodium and potassium balance in the body. In adrenal insufficiency, low aldosterone can lead to increased sodium excretion and potassium retention, causing dehydration, low blood pressure, and electrolyte imbalances.
25. How does adrenal insufficiency affect the body's response to alcohol?
People with adrenal insufficiency may have increased sensitivity to alcohol due to its effects on blood sugar and the body's stress response. Alcohol can also interfere with cortisol's normal daily rhythm.
26. What is the relationship between adrenal insufficiency and thyroid function?
Adrenal insufficiency can impact thyroid function indirectly. Cortisol helps regulate the conversion of thyroid hormones, so its deficiency can affect thyroid hormone metabolism. Additionally, autoimmune thyroid disorders are more common in people with Addison's disease.
27. How does adrenal insufficiency impact exercise tolerance?
People with adrenal insufficiency often have reduced exercise tolerance due to fatigue, muscle weakness, and the body's inability to respond adequately to the stress of exercise with appropriate cortisol production.
28. How does adrenal insufficiency impact the healing process?
Cortisol plays a role in wound healing and tissue repair. In adrenal insufficiency, the healing process may be slower due to inadequate cortisol levels, potentially increasing the risk of complications from injuries or surgeries.
29. Can adrenal insufficiency cause changes in taste preferences?
Yes, adrenal insufficiency, particularly Addison's disease, can cause salt craving due to sodium loss. Some people may also experience changes in taste perception or increased desire for sweet foods due to blood sugar fluctuations.
30. What is an adrenal crisis, and why is it dangerous?
An adrenal crisis is a life-threatening condition that can occur in severe adrenal insufficiency. It involves a sudden, extreme drop in cortisol levels, leading to low blood pressure, severe weakness, and potential organ failure if not treated promptly.
31. How does adrenal insufficiency impact bone health?
While excessive cortisol can lead to bone loss, normal levels are necessary for bone health. In adrenal insufficiency, the lack of cortisol and sometimes sex hormones can potentially lead to reduced bone density over time.
32. How does adrenal insufficiency impact the immune system?
Cortisol helps regulate the immune system. In adrenal insufficiency, the lack of cortisol can lead to an overactive immune response, potentially increasing susceptibility to inflammatory conditions and autoimmune disorders.
33. How does adrenal insufficiency affect the cardiovascular system?
Adrenal insufficiency can lead to low blood pressure and decreased cardiac output due to reduced cortisol and aldosterone. This can cause dizziness, fatigue, and in severe cases, cardiovascular collapse.
34. How does adrenal insufficiency affect fluid balance in the body?
Adrenal insufficiency, particularly when aldosterone is low, can disrupt fluid balance. This can lead to dehydration due to increased urine output and sodium loss, potentially causing low blood volume and pressure.
35. What are the main types of adrenal insufficiency?
There are two main types: primary adrenal insufficiency (Addison's disease), where the adrenal glands themselves are damaged, and secondary adrenal insufficiency, where the pituitary gland fails to produce enough ACTH to stimulate the adrenals.
36. How does secondary adrenal insufficiency differ from primary?
In secondary adrenal insufficiency, the problem originates in the pituitary gland, which doesn't produce enough ACTH to stimulate the adrenals. This differs from primary insufficiency where the adrenal glands themselves are damaged.
37. What is the connection between adrenal insufficiency and salt-wasting?
In primary adrenal insufficiency, low aldosterone levels lead to excessive sodium excretion in urine (salt-wasting). This can cause dehydration, low blood pressure, and electrolyte imbalances if not treated.
38. Can adrenal insufficiency cause visual disturbances?
While not a direct symptom, severe adrenal insufficiency or an adrenal crisis can potentially cause visual disturbances due to effects on blood pressure and brain function. In secondary adrenal insufficiency, pituitary issues might also affect vision.
39. How does adrenal insufficiency affect liver function?
Cortisol influences various liver functions, including glucose and lipid metabolism. In adrenal insufficiency, these processes may be altered, potentially affecting blood sugar regulation and lipid profiles.
40. What is the relationship between adrenal insufficiency and hypoglycemia?
Cortisol helps maintain blood sugar levels by promoting gluconeogenesis (production of new glucose) and counteracting the effects of insulin. In adrenal insufficiency, low cortisol can lead to hypoglycemia, especially during fasting or stress.
41. How does adrenal insufficiency affect the body's ability to handle infections?
Cortisol helps modulate the immune response to infections. In adrenal insufficiency, the inadequate cortisol response can lead to an exaggerated inflammatory response to infections, potentially making them more severe.
42. How does adrenal insufficiency affect electrolyte balance?
Adrenal insufficiency, particularly when aldosterone is low, can lead to electrolyte imbalances. This typically involves low sodium levels (hyponatremia) and high potassium levels (hyperkalemia) in the blood.
43. How does adrenal insufficiency affect sleep patterns?
Cortisol plays a role in the sleep-wake cycle. In adrenal insufficiency, disrupted cortisol production can lead to sleep disturbances, including difficulty falling asleep, frequent waking, and daytime fatigue.
44. What role do sex hormones play in adrenal insufficiency?
The adrenal glands produce small amounts of sex hormones (androgens). In adrenal insufficiency, these levels may be low, potentially affecting libido, body hair growth, and in women, can contribute to loss of pubic and axillary hair.
45. How does stress affect people with adrenal insufficiency?
People with adrenal insufficiency have difficulty responding to physical and emotional stress due to inadequate cortisol production. This can lead to fatigue, weakness, and potentially an adrenal crisis during stressful situations.
46. How do the adrenal glands normally function?
The adrenal glands, located on top of each kidney, produce hormones that help regulate metabolism, immune system, blood pressure, stress response, and other essential functions. They produce cortisol, aldosterone, and small amounts of sex hormones.
47. What is adrenal insufficiency?
Adrenal insufficiency is a condition where the adrenal glands don't produce enough of certain hormones, particularly cortisol and sometimes aldosterone. This can lead to a variety of symptoms and affect multiple body systems.
48. How does adrenal insufficiency affect blood sugar levels?
Cortisol helps regulate blood sugar by promoting gluconeogenesis (production of new glucose). In adrenal insufficiency, low cortisol can lead to hypoglycemia (low blood sugar), especially during fasting or stress.
49. Can adrenal insufficiency affect growth in children?
Yes, adrenal insufficiency can affect growth in children. Cortisol plays a role in normal growth and development, so insufficient cortisol can lead to slowed growth and delayed puberty in children with adrenal insufficiency.
50. How does adrenal insufficiency impact the gastrointestinal system?
Adrenal insufficiency can cause gastrointestinal symptoms like nausea, vomiting, abdominal pain, and decreased appetite. These symptoms are partly due to cortisol's role in maintaining the gut lining and regulating stomach acid production.
51. Can adrenal insufficiency cause mental health symptoms?
Yes, adrenal insufficiency can lead to mood changes, irritability, depression, and anxiety. Cortisol plays a role in regulating mood and cognitive function, so its deficiency can impact mental health.
52. Can adrenal insufficiency cause muscle weakness, and if so, why?
Yes, muscle weakness is common in adrenal insufficiency. Cortisol helps maintain muscle mass and strength. Its deficiency can lead to muscle breakdown and weakness, particularly in the legs and arms.
53. How does adrenal insufficiency affect the body's ability to maintain body temperature?
Cortisol helps regulate body temperature. In adrenal insufficiency, people may have difficulty maintaining normal body temperature, leading to increased sensitivity to cold or heat.
54. How does adrenal insufficiency affect the respiratory system?
While not directly impacting lung function, adrenal insufficiency can cause breathlessness due to weakness and fatigue. In severe cases or during an adrenal crisis, it can lead to respiratory distress.
55. Can adrenal insufficiency cause cognitive symptoms?
Yes, adrenal insufficiency can lead to cognitive symptoms such as difficulty concentrating, memory problems, and mental fog. These are partly due to cortisol's role in cognitive function and the overall impact of the condition on the body.
56. How does adrenal insufficiency affect the menstrual cycle in women?
Adrenal insufficiency can lead to menstrual irregularities or amenorrhea (absence of menstruation) in women. This is due to the impact of cortisol and adrenal androgens on the reproductive system and overall hormonal balance.
57. Can adrenal insufficiency cause changes in body odor?
While not a primary symptom, changes in body odor can occur in adrenal insufficiency due to alterations in sweat production and composition, as well as potential changes in skin bacteria related to electrolyte imbalances.
58. What is the connection between adrenal insufficiency and calcium metabolism?
Cortisol plays a role in calcium metabolism and bone health. In adrenal insufficiency, there may be subtle changes in calcium balance, potentially affecting bone density over time if left untreated.
59. Can adrenal insufficiency cause changes in pain perception?
Cortisol has anti-inflammatory properties and influences pain perception. In adrenal insufficiency, some people may experience increased sensitivity to pain or worsening of chronic pain conditions due to the lack of cortisol's modulating effects.

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