Q: Can you do a hair transplant using someone else’s hair? — K.K., Garden City, N.Y.

A: Unfortunately, this is not possible because your body would reject the hair transplant without the use of immunosuppressive drugs. The problem with immune suppressants is that they will lower your natural immune response, increasing your susceptibility to infections and even cancer, and you’ll have to take them for the rest of your life.

A transplant using someone else’s hair is also not desirable for aesthetic reasons. There’s the style of the hair, its texture, thickness, color, etc. Trying to find the perfect donor whose hair would complement and flatter your particular features and blend in with your remaining hair would be a significant, if not impossible, challenge. It would be possible, however, to transplant the hair from one identical twin to another, but most likely if one went bald, so would the other.