A little itchy incision one year after total uterine excision may be caused by localized keloid, subcutaneous inflammation, allergic skin disease and other reasons. 1. Local keloid: keloid, also known as connective tissue hyperplasia, is secondary to skin trauma, spontaneous formation and overgrowth of pathologic scar tissue, mainly manifested as a pimple or cord above the surface of the skin, the surface is smooth, loss of normal skin texture, a few patients may be accompanied by mild itching or burning sensation. 2. Subcutaneous inflammation: one year after the surgery, chronic inflammation and infection under the skin or the suture line does not heal, forming a thread abscess, subcutaneous pus accumulation, etc., which may cause local itching. 3. Allergic dermatosis: Allergic dermatosis is a class of common dermatological diseases, belonging to the allergens into the human body, caused by an abnormal immune response, mainly manifested as erythema, papules, blisters and other lesions, and accompanied by varying degrees of itching, tingling, redness and swelling. It is recommended that patients seek timely medical examination to clarify the cause of the disease and then carry out targeted treatment, pay attention to monitoring the condition in life, and follow the doctor’s instructions for regular review.