i had brain surgery, and now I'm going bald. I'm a woman of 37. What can I do?

You need more information than just "brain surgery" causing hair loss for treatment options. You need to see a doctor for a proper exam for a diagnosis.

you are having a reaction called telogen which causes hair loss for 3-6 months but this can be reversed more quickly with oral nutrients, Eclipse prp and progresterone injections. I suggest speaking to a cosmetic dermatologist who does this unique hair treatments.  Best, Dr. Emer.

There are many reasons for hair loss after brain surgery - so determining the precise cause is essential to plan what to do next. There are temporary causes like telogen effluvium and more permanent causes like hair loss in the region of the scarThe former is treated non  surgically and the latter is treated surgically. All in all, it's important to sit down with a hair specialist and first determine the causes. step 2 will then be to plan treatment.