One day, Xiao Zhang came to the scar clinic of the Department of Formation at Beihang Hospital. Facing the doctor, he lifted up his clothes and revealed seven or eight red bumps on his chest skin, large ones as big as eggs. Since Zhang’s bumps are too big and too many, I’m afraid they will cause discomfort, so I’ll throw a few of them in the eye to feel a little bit: Zhang said these bumps are increasing in size and often have a painful itchy feeling, sometimes even affecting sleep. After careful examination by the doctor, he was finally diagnosed with “keloid on the chest”. The term “keloid” is a medical term that is unfamiliar to many people. A keloid is an abnormal proliferation of scar tissue that extends beyond the damaged skin and erodes into the surrounding normal skin, also known as a “crab foot swelling”. They often appear as purplish-red lumps above the skin, hard and inflexible, with localized itching or pain, and can grow continuously. Why does Zhang have a keloid? The doctor asked Zhang if he had been injured or had surgery, but Zhang shook his head and denied it, saying that he had just started to grow a few small red pimples on his chest, like pimples, and didn’t care about it, not thinking that red pimples could grow so big. What started as a small red pimple slowly grew and hardened, turning into a keloid. The nature of the lesion also changes from a localized bacterial inflammatory lesion to a keloid with the ability to grow, making treatment more and more difficult, and also affecting the aesthetics. In our scar clinic, we often see patients like Zhang with multiple keloids on the jaw, chest, shoulders and back. When tracing their etiology, many of them have small red pimples on their skin in the early stage, which were not cared for and not treated. These small red pimples are folliculitis on the skin. How does folliculitis evolve into keloids? Folliculitis is a bacterial infection of the skin that occurs on the scalp, face, buttocks, etc. It can also occur on the back of the chest and shoulders. The inflammation of follicles in these areas continues to irritate the skin and produce keloid scars, which gradually increase in size and become hard keloid scars that cause discomfort to the patient. These keloids require long-term comprehensive treatment to gradually improve. Currently, keloids can be treated with intra-scar injections, surgery, laser, and radiation therapy. The treatment period is long and requires the patient to persist with the treatment. Then what should be done to prevent folliculitis from turning? Folliculitis is relatively easy to treat in the early stage and can be treated by applying disinfection with iodine tincture, antibacterial ointment or surgical drainage of pus, and should be seen at a regular hospital as early as possible. When folliculitis is cured, the scarring can be effectively inhibited. Therefore, do not ignore folliculitis and cure it early in order to avoid keloid scars afterwards.