Cysts are benign growths comprised of a dilated hair follicle and skin proteins. The type of cyst is determined by where the hair follicle is blocked. Cysts can sometimes shrink or resolve after treatment with steroid injection(s), but often they must be cut out to completely remove. Occasionally they can come back after they are removed, but typically once is sufficient as long as all of the lining is removed. Some people are more prone to cysts and form multiple cysts over time.
Occasionally a lesion can look and act like a cyst but be cancerous so you should have any growing, painful, large or otherwise concerning growth evaluated by Dr. Buster.
Any/all cysts excised by Dr. Buster are sent for to a pathology lab for analysis by a board-certified dermatopathologist (skin pathologist).