Half a month after liposuction, the itchiness is normal, but it does not exclude the wound infection, skin allergies, hyperplastic scarring and other reasons. Liposuction surgery is the use of negative pressure suction method, the subcutaneous fat sucked out so as to play the purpose of weight loss, shaping, liposuction surgery after the damaged tissues will gradually recover, the local nerve endings will also proliferate will be itchy symptoms, belong to the normal phenomenon of the postoperative recovery period. 1. Wound infection: liposuction surgery is traumatic, if you do not pay attention to local hygiene or premature exposure to water after surgery, bacterial infection may occur, wound infection will be localized at the same time there will be redness, swelling, pain and other symptoms, some will be more itchy. 2. Allergy: after liposuction surgery, you need to wear two months of shapewear, if you choose the shapewear, the quality is not good or allergic to the material, it will also trigger skin allergies, itching. 3. Proliferative scarring: excessive repair of fibrous tissue after injury to the organism can lead to obvious itching, pain, poor skin elasticity and other symptoms in the early stages of wound healing. Half a month after liposuction is particularly itchy, there may be other reasons, it is recommended to go to the regular hospital in time, improve the examination to clarify the cause of the disease, under the guidance of specialists to give targeted treatment or treatment.