Life accidentally caused by a certain skin abrasion, generally a few days will heal. But recently the neighbor’s grandmother is strange, the hand accidentally scratched has been a few months time is always difficult to grow well, broken skin after a long time is still red, there is always a wound on the hand is very uncomfortable, so what is the cause of this phenomenon? What is the reason why the hand does not heal for a long time after trauma? 1, the patient’s age is one of the common reasons for the wound not to heal. Older people have a poor blood supply due to their own tissue cell regeneration ability, which results in delayed wound healing and reduced healing quality. 2, certain systemic diseases will affect the speed of wound healing. If the patients themselves have diabetes, anemia, rheumatoid arthritis, autoimmune diseases, malignant tumors, liver failure and renal insufficiency and other systemic diseases, will affect the speed of wound healing. 3, wound inflammation is more serious or wound infection is not timely treatment, will also affect the speed of wound healing, and even long-term non-healing situation. 4, bad diet, unbalanced nutritional intake will also affect the regenerative function of human cells, affecting the healing of the wound. 5, improper medication can also lead to wound healing, such as high-dose adrenocorticotropic hormone can significantly inhibit the formation of new capillaries, fibroblast proliferation and collagen synthesis, and accelerate the breakdown of collagen fibers, resulting in poor healing. How to deal with hand trauma after a long time not healing? 1, if the patient’s skin ulceration degree is light, the wound appears inflammatory reaction, use saline to rinse the wound, and then coated with disinfectant such as iodophor for sterilization, appropriate bandaging can be. 2, if the patient’s skin ulceration is more serious, there is a large area of tissue necrosis, need to do a good job of surgical debridement to remove the sore surface of the necrotic tissue and exudate, this is the basis for control of skin ulcers. In the treatment period also need to be under the guidance of the doctor oral or intravenous injection of some anti-inflammatory, anti-infective role of antibiotic drugs to control wound inflammation. 3, many diabetic patients in the wound after the injury is not easy to heal, and also easy to occur the phenomenon of infection, it is recommended that such patients or appropriate injection of insulin, if it is a serious diabetic patients need to pay more attention, because there is a possibility of diabetes syndrome, the wound healing more or less have an impact. After the hand trauma diet to pay attention to: 1, can not eat soy sauce, may lead to scarring of the wound. 2, can not eat spicy and irritating food, such as chili peppers. These foods can easily cause fire, which can lead to wound inflammation. 3, can not eat edible mushroom food, such as mushrooms, shiitake mushrooms, etc.. These foods are mostly high-protein foods, eat more easily on the liver fire, usually have a headache, dizziness and other symptoms of people, to eat as little as possible. 4, can not eat sea fishy food, such as scallops, yellow fish, pomfret, mussels, shrimp, crab and other aquatic products. Most of them are cold and fishy, causing a certain degree of impact on the healing of the wound. 5, can not eat peaches, apricots and other fruits. These fruits are easy to eat too much fire, apricot eaten too much is easy to hurt the bones, will have a certain impact on the wound healing. 6, do not eat chicken head, chicken wings, chicken claws, goose, pork and other food, these foods are easy to trigger liver fire, thus affecting the healing of the mouth.