Many patients who seek treatment want to treat their scars directly through injections, finding the treatment convenient and easy. But not every kind of scar is suitable for injection treatment. First of all, we need to understand what exactly is injection therapy? Injection treatment for scars is commonly known as scar injection, that is, scar softening injection or keloid softening injection, and its main ingredient is a glucocorticoid. It is usually referred to as Depo-Provera injection. Depo-Prostone injection, is a glucocorticoid drug, the drug injected into the scar, will form the scar body of collagen fibers gradually degraded into collagenous progenitor cells, and ultimately the formation of dermal epithelioid cells, and then degraded to form the scar softening changes. Eventually the scar shrinks. This kind of injection is mainly composed of betamethasone, mainly betamethasone dipropionate and betamethasone sodium phosphate, the former is 1 ml, the latter is 2 ml. this kind of drug has anti-inflammatory, anti-itching, and at the same time has obvious atrophy function. Injections for scar treatment are usually used to treat red, hard and prominent pathologic scars on some scar patients, which are often referred to as scars or hyperplastic scars. Scar injections can make these scars slowly shrink and soften, and gradually flatten out. It is important to remember that not all scars are suitable for scar injections. Grayish-white old scars, striped white scars from trauma or surgical stitches do not need scar injections. Only red raised, painful and itchy scars that are even growing are more suitable for scar injections. For the affected areas that can be injected with scar injections, the use of injections to treat scars is effective, fast-acting and there are very few scars for which the injections are ineffective; as long as the patient takes the injections regularly and on time, the protruding scars will definitely flatten out. Therefore, before the treatment of scars, the key step is to go to the regular hospital to find a professional doctor to determine the scars belong to that kind, to find the right medicine with targeted treatment methods, to achieve good results.