The damage of a scar depends on its nature and characteristics, as well as on the secondary fixation of deeper tissues. Thus the scar is always an imperfect replacement in relation to the pre-injury tissue. From the mechanical point of view, its resistance is weakened; from the nutritional point of view, it causes an obstacle to the exchange of oxygen and nutrients; from the functional point of view, it causes deformity and dysfunction of the damaged tissue from the aesthetic point of view, it causes a disruption of the appearance. The physical examination of scars: The physical examination of dermatological diseases is to examine the physical aspects of the skin, such as: skin scratch test, slide pressure diagnosis method, etc.; the appearance of the skin is observed, the skin is normal if there is no damage cut with luster and other non-diseased state. The skin should be examined under natural light, and the skin of the trunk and oral mucosa should be examined in addition to the exposed skin, and not only the visual examination but also the palpation should be used to obtain a comprehensive impression in order to obtain a correct diagnosis. Notes on scarring: 1. Do not eat indiscriminately. If you are a keloid, and accompanied by scratching, pain, stiffness, reddening, hyperplasia or contracture deformation of the symptoms, the scar diet should be especially careful. The products that are fried and moxibustion, fatty, sweet and greasy, spicy and dry food should all be forbidden. This is because these foods will make the spleen and stomach miscellaneous stagnant, the health function is not normal. It will also increase blood flow, which creates conditions for the deterioration of scarring. 2, citrus food should be completely abstained from. Therefore such foods can significantly stimulate the scar to produce itching. 3. Do not be partial to food. The Chinese medicine believes that medicine and food have the same origin. The food also has four properties: hot, cold, warm, and sour, bitter, sweet, pungent, and salty. If you have a partial diet, it will lead to an imbalance in the nutrient intake of the body, which is not conducive to the fading of the scar. 4. No over-eating. If you eat too much, you will damage your spleen and stomach, which can lead to insufficient qi and blood biochemistry; if you eat too little, you will easily suffer from malnutrition and insufficient qi and blood. This will lead to deficiency of righteousness and flooding of evil energy.