What is a medical term used for spot baldness?

Donna, Depends on the cause...

Jimmy, Stress generally doesn't result in SPOT/PATCHY alopecia/baldness (as posed in the question) though.

I had alopecia which was stress, and a lot of things that meant a lot to me worrying about this n that, but after getting all my remaining hair shave off, I was lucky that it grew back again,,

Actually most of the hair ends up bald