Causes of acne scars

Everyone must have seen acne scars. This is because a kind of tissue appears after the acne is repaired. This tissue can exist on the human skin for a long time, and the next time the human body has acne, it may still appear if it is not properly cared for. However, these acne scars can be repaired by some skin care products, and there are many reasons for these acne scars. So what are the causes of acne scars?

Most acne will leave acne marks (acne scars). The key to acne marks is prevention. Acne should be treated as early as possible to prevent permanent scars. The earlier the treatment, the less likely it is to leave acne marks. As the skin metabolizes, acne scars will gradually fade and become lighter.

The reason why scars are left on the skin is because the dermis is damaged. If only the epidermis is damaged, no scars will be left, and even if there are some scars, they are only temporary. If the pimples on your face are not infected, they will not leave any depressions after they heal; if they are inflamed, as long as the inflammation subsides in the early stages, they will not leave any depressions, but they may leave some marks. These marks are post-inflammatory pigmentation, which generally disappear in about three months to a year. There are two reasons why acne leaves depressions. One is that the acne is infected, resulting in abscesses and pustules. In order to drain the pus, or the pustules rupture, the dermis is injured, which will definitely leave scars. Another possibility is that you have a scar-prone constitution, and even a small wound may leave a very obvious scar. The problem of acne scars involves the epidermis, dermis and subcutaneous tissue below the skin. The consequences include skin damage, tissue defects and scar formation, which not only cause defects in the skin's appearance, but also affect the normal tissue structure of the skin. To improve acne marks and scars, a doctor must diagnose and evaluate different types of scars to determine a treatment plan.

Acne scars are a repair response of the body to tissue damage. When skin damage reaches deep into the dermis or a large area of ​​epidermis is damaged, the epidermis in that area cannot regenerate and will be replaced by dermal fibroblasts, collagen and proliferating blood vessels, resulting in acne scars. Acne scars are caused by infection, inflammation or external force. This is often because acne is not treated promptly and appropriately when it occurs. The inflammatory response of skin cells causes damage to the skin tissue, resulting in scars. Due to the various types of acne, there are also many forms of acne scars. The more severe the inflammatory reaction during an acne attack, the more severe the skin tissue is damaged. The deeper the inflamed area, the deeper the skin tissue is damaged, and the more severe the acne scars that may be left in the future will be.

When acne breaks out, it causes blood vessels to dilate. After the acne disappears, the blood vessels do not shrink immediately, resulting in the formation of some flat red spots. The inflammatory response of skin cells causes damage to the skin tissue. The pigmentation after inflammation will leave a dark and dirty color in the places where the red acne has grown, thus forming acne marks. When acne persists and the acne marks continue to increase, various cells release a variety of cytokines, leading to abnormal arrangement of skin collagen and matrix. Coupled with the influence of microcirculation and free radical factors, lymphatic return is reduced, and local edema occurs, which forms acne scars.