It is normal to have only one hair in a follicle. Hair is an appendage of the skin, and hair growth is related to factors such as genetics, health, hormone levels, medication and climate. A hair follicle normally grows only one hair under normal circumstances. Occasionally, multiple hairs may grow in one follicle, which may be due to mutation of some hair follicles or aggregation of multiple hair follicles, and thus the phenomenon of multiple hairs growing from one pore may occur. If you have any questions related to hair, you should go to a specialist clinic, do not self-medication or superstitious prescriptions, so as not to cause adverse effects on the body.