The wound on the leg has been bad, often due to the following reasons: 1, the wound may have infection, when the wound has infection, it will not be easy to heal. In this case, you need to go to the hospital regularly for a change of medication, if necessary, local debridement, while giving oral antibiotics or infusion for treatment; 2, there are foreign bodies in the wound caused by the need to go to the hospital surgery or emergency department for disposal, generally need to remove the foreign body, and then regular change of medication; 3, the nutritional status is too poor caused by, when the intake of nutrients less, or the physical condition is too poor, the local wound is not easy to healing. At this time, the intake of fresh fruits and green vegetables, appropriate intake of low-fat high-quality protein, common fresh fish and shrimp, leaner beef, etc.; 4, if the patient has diabetes and poor blood sugar control, will also lead to the wound is difficult to heal, need to go to the hospital endocrinology department as soon as possible to adjust blood sugar.