To see if there are hair follicles in the lost hair, you need to choose the hair microscope examination.
Hair is an appendage of the skin, including the hair shaft and the hair follicle, of which the hair follicle is a structure invisible to the naked eye, and needs to be examined by hair microscope to be able to find out. After the hair follicle is damaged and atrophied, the local hair will lose the condition to grow and permanent hair loss will be formed.
Causes of follicular damage and permanent hair loss include traumatic alopecia areata (scarring of the hair follicles), lichen sclerosus (yellow-white ringworm), and penetrating folliculitis of the scalp, as well as balding and seborrheic alopecia areata (seborrheic alopecia areata).
For people with hair loss, you can choose a regular medical institution to have an interview with a professional doctor and complete the relevant examinations to understand whether the hair follicles are damaged.