Acne scars and keloids are often caused by improper treatment of acne or by scratching, squeezing, and breaking the skin during the treatment process, leading to infection and the subsequent formation of these scars and keloids. Once formed, it is impossible to completely remove them. If the keloid scars are not particularly prominent, you can visit a dermatology department at a standard hospital to repair them with fractional laser treatment. If the keloid scars are very noticeable and proliferative, you can also visit a dermatology department at a standard hospital for drug injection treatment, but it is not possible to completely remove them, only to temporarily relieve the symptoms. If the scars are relatively small, cosmetic surgery to excise them can be an option. Therefore, during the treatment of acne, it is crucial to follow standard practices and timely treatment, and to avoid scratching or squeezing the skin to prevent the formation of keloid scars.