Back ulcers generally refer to skin ulcers on the back, which are mainly caused by breakdown of nodules or tumors, infections, and circulatory disorders. Common dermatologic ulcers such as squamous cell carcinoma, advanced syphilis, stasis dermatitis, etc. Radiation therapy, etc. can also cause radiologic ulcers, and pressure factors can also cause pressure ulcers (pressure ulcers) and so on. The size, color, edge, base, secretion and development of the ulcer may vary with the cause. Usually, the ulcers vary in size, often have plasma, pus or blood on the ulcer surface, often have necrotic tissue at the base, and have steep, sloping edges or are higher than the surrounding normal skin. The ulcers may leave scar after healing. Squamous cell carcinoma: it often occurs in the head and neck, penis and the often exposed parts of the limbs. It can form ulcers at the early stage, which will not be healed for a long time, and the surface is cauliflower-like with elevated edges. Late syphilis: nodular syphilis rash often has tightly attached scales or scabs on the surface, and under the scabs are superficial ulcers, which gradually expand around. Siltation dermatitis: mostly characterized by erythema and brown pigmentation of the lower legs, the appearance of papules, blisters, vesicles and recurrent difficult to heal. Radioactive ulcers: mainly due to radiation exposure and local skin damage, skin and mucous membrane inflammation resulting in ulcers, may also lead to vascular and nerve lesions, necrosis, this type of ulcers produced by the wound is more difficult to heal. Pressure ulcers: patients affected by physical diseases, the back is compressed for a long time, resulting in subcutaneous tissue ischemia, necrosis, thus appearing local damage ulcer phenomenon. If the back ulcers, you should do a good job of turning care, keep the wound clean to avoid infection, and keep the local dry. Back ulcers have more reasons, it is recommended to consult a doctor in time to avoid aggravation of the injury.