In daily life, bumps and bruises are common, and scars due to trauma, facial acne, surgical stitches, pregnancy and other reasons are also very common, and many dermatologists are most often asked the question of how to avoid scars. The factors that affect scarring are looked at in two parts, one is the body type, such as genetics, there are some people who have a family history of scarring and have a higher chance of scarring. The second is age. Older people suffer from slow wound healing due to decreased regeneration of various tissue cells, while the opposite is true for younger people. In addition, anemia, malnutrition, lowered resistance, diabetes, atherosclerosis and other factors can affect wound healing and increase the probability of scar formation. Want to prevent scars, do the following three points, prevention without worry: 1, early prevention, once the skin infection, inflammation and other conditions, please find a professional doctor in time for wound treatment, to avoid the formation of wounds and other delayed healing, resulting in the formation of scar. 2, early treatment, when the trauma is deeper or bleeding, on the one hand, we need to clear the wound in time, on the other hand, we need to choose to reduce the tension of the skin to a minimum, 3, the correct treatment, in the early stage of the formation of scars, early and effective targeted care is very important. For example, after the scar scabs naturally fall off and then wait a week you can apply the appropriate amount of scar cream, coupled with daily moisturizing, sunscreen, eat a light diet. You can also use photon laser to repair the red marks, and if the scars produce pigmentation, you can also use ultra-picosecond laser treatment. Lastly, prevention of early scarring is more important than treatment. It is important to seek timely medical attention and choose a targeted treatment to prevent problems before they occur and to avoid regrets.