A lot of small granular growths on the chin are most often seen as whiteheads, or blackheads, either of which is a type of acne vulgaris. The reason for the formation of common acne is complex, mainly due to the follicle sebaceous glands in the area are more developed, coupled with the body’s sebum formation is more, the face of the sebum secretion, so it may be able to produce a certain amount of secretion, if the discharge is not good, will produce a certain amount of acne, the formation of closed acne, or blackheads acne, etc.. This granular material may also be infected with a virus, and the formation of infectious molluscum contagiosum, mainly due to the infection of the molluscum contagiosum virus and formed, so in the treatment of warts need to be scraped treatment.