What are some bad things about brain transplant?

I believe that a brain transplant is bad because you weren't born with that brain , you may have the other persons memories.

in your brain you have infinite nerves and each single nerve makes up who you are, if you have someone else's brain you may not be exactly the same any more.

i hope this helps

Even though Brain Transplants are of a great benefit to those who are in need of it, there are also bad things about it. For example, one is the inability of nerve tissue to heal properly, so the nerve tissue would not heal as it should be, which would cause lack of senses. 

It’s either a or b hope this