Hello Dear Student,

No Class 12th Marks doesn't matter in the field of Medical Sciences. Because after completing your MBBS, If you want to pursue higher education like MD or MS then you need to appear in a PG entrance examination and you will get seat solely on the basis of Performance in the PG entrance exam, there is no weightage of 12th Marks in the selection process.

Same for the Job, If you want to do Job as a Doctor in a Private or Government Hospital then you have to go through proper selection procedure and I don't think they give any weightage to marks of 12th Class, So do not worry, Just focus on your MBBS and Study well.

All the Best