Elderly leg itchy ulcers may be caused by pressure sores, fungal infections, small skin vasculitis, etc., which can be treated by medication and surgery. 1. Pressure sores: when the elderly leg skin long-term pressure and exudate stimulation, will affect the blood circulation of the leg, and damage the skin barrier, resulting in skin tissue degeneration and necrosis, there will be symptoms of itchy legs ulcers, should be frequently changed the elderly position to ease the ulcer, can be used to promote the healing of ulcers, can be performed in serious cases of debridement surgery, flap repair surgery and so on. 2. Fungal infections: the physical condition of the elderly is poor, the skin of the legs is easy to be infected by fungi, which can also lead to itching and ulceration of the skin of the legs, you can follow the doctor’s instructions to inhibit fungal infections such as oral itraconazole, terbinafine, and other joint topical miconazole, clotrimazole ointment and other drugs. 3. Small skin vasculitis: the etiology is unknown, may be related to infection, drugs, tumors and so on. It often manifests as erythema, papules, purpura, blisters, blood blisters, vesicles, ulcers, necrosis and superficial nodules on the lower limbs and buttocks. Most small cutaneous vasculitides are self-limiting and require only rest, supportive therapy and topical glucocorticoids such as hydrocortisone butyrate cream. If the lesions are extensive and the symptoms are severe, short-term glucocorticoid therapy such as oral prednisone may be given, and if still uncontrollable, cytotoxic drugs such as cyclophosphamide may be combined. Elderly legs itchy ulcers should immediately consult the doctor, under the guidance of the doctor to identify the cause of the disease, and cooperate with the doctor to actively treat, pay attention to local hygiene, avoid infection.