Hello Shreya,

Few disadvantages of nuclear medicine are as follows

•  It requires high costs to operate.

With regards to the industry, purchasing, setting up, operating and maintaining some of the machines associated to nuclear medicine can be very costly.

• It comes with associated health risks.

For those who have been exposed too much under treatment of nuclear medicine, certain health issues can arise, with the highest risks occurring in elderly, pregnant and young patients.

• It does not offer a 100% guarantee. 

Though nuclear medicine has provided some of the best medical treatment options today, it still does not serve as a fool-proof system. After all, there has been no medical procedure promising a 100% guarantee, yet.

Thank you