Can what doctors are saying are cysts on my head be something more serious? There are 9 spots. Some still getting bigger and some new. Been 6 yr span.

Probably not. Many people form cysts on the scalp. These are benign and are ususally easily removed. They can be fairly large and unsightly. They may cause discomfort depending on size and location. See your pcp, dermatologist, general surgeon or other physician if havig problems. Multiple ones support the cyst theory. More serious cyst-like lesions on the scalp are fairly rare. Get a second opinion ?