Chinese medicine believes that this disease is a deficiency of yin and blood, the liver loss of glory, and qi and blood disharmony, blood wither and dryness, tendons and gas outside the skin, or wind and poisonous evil attack, blocked in the meridian, cohesion of the skin and become.

Modern medicine, warts for viral skin disease, common warts, flat warts, acromegaly are caused by the papilloma virus, the three have epidermal hyperkeratosis, acanthosis, dermal protrusion prolongation and other pathological changes. Infectious molluscum contagiosum is caused by infectious molluscum contagiosum virus (belongs to pox virus), epidermal cells contain soft wart vesicles and the occurrence of degeneration is its characteristics.