Keloid scars on the chest are mainly caused by acne, folliculitis or other inflammatory skin diseases without systematic treatment, as well as excessive proliferation of subcutaneous connective tissue after artificially squeezing the skin with hands, thus causing keloid scars. After 4-5 times, the smaller keloids can gradually shrink and even fade away. In addition, you can also choose to go to a regular tertiary hospital for medical aesthetic treatments, such as photorejuvenation laser treatment and pulsed laser combined with fractional laser treatment. If the keloid is increasing in size after the above treatments and a giant type of keloid appears, surgical removal of the keloid is required at this time, followed by skin grafting and subsequent radiotherapy. During the treatment period, patients should refrain from spicy and irritating foods, alcohol, and squeezing the keloid with their hands. In addition, for folliculitis, acne and other inflammatory skin diseases, patients are advised to treat them promptly and as early as possible to avoid the formation of keloids. Therefore, for keloid scars appearing on the chest, patients are advised to go to a regular hospital and be treated under the guidance of a dermatologist.