Keloidism is a special kind of constitution, which is mainly manifested by the fact that after the healing of damage to any part of the body, a scar larger than the original orifice or persistently enlarged, and may be accompanied by itching and other discomforts. The etiology and pathogenesis of keloid scarring are not completely clear, but there is a relationship with genetic factors. Keloid patients in the early stage of wound healing, there is no obvious performance, lesions are usually red papules, with the gradual increase in scarring, lesions can be round or irregularly shaped keloid, and higher than the surface of the skin, in addition, keloid can be more than the original site of the injury to the external development of the part of the patient may have varying degrees of itching, tingling and other discomforts. Keloid scarring cannot be changed, but it can be reduced after active treatment (e.g. medication, laser treatment, etc.).