The formation of keloids is largely related to one's inherent scarring constitution. Some patients are not prone to keloids but can still develop them due to particularly deep or large wounds. Additionally, keloids can form on the chest or shoulders after repeated occurrences of folliculitis. Currently, there are not many treatments for keloids. For larger keloids, medication can be used locally to gradually soften and reduce their size. For smaller areas, cosmetic surgical methods can be employed for removal, although this does not guarantee prevention of recurrence. Once keloids appear, they are mostly irreversible. If the keloid grows rapidly, treatment can also be sought at nuclear medicine departments, where nuclear radiation therapy is used.