Keloid, also known as scarring qualities, is sometimes cautiously referred to by doctors as “scarring tendencies”. Plastic surgeons often encounter scar patients or candidates for cosmetic surgery who ask, “Doctor, am I a keloid? Look, I have a scar right here.” I think to answer this question, it is important to clarify two points with the current technology: 1. Is there a scar on the body? 2. If so, what does the scar look like? The first question I would like to say is that if you are a keloid, there will be more or less keloid scars on your body, some due to trauma, some even the patients themselves are not sure; people inevitably have skin and soft tissue damage in life, scar repair is a way to repair the damage, to a certain extent it can be said to be a normal phenomenon, having keloid scars does not mean you are a keloid, but the chance of not having keloid scars on your body is much lower than that of a keloid. The chances of not having a scar on a keloid patient are much less than that of a keloid itself. Therefore, in my personal opinion, keloid patients will definitely have keloid scars on their bodies. The second issue is more complicated. Keloid scars are usually classified as superficial keloid scars, atrophic keloid scars, hyperplastic keloid scars and keloid scars, and some doctors believe that pathological keloid scars include hyperplastic keloid scars and keloid scars (I agree with this statement). The back of the shoulder, forehead, and earlobe are good locations on the human body, so the occurrence of hyperplastic keloid scars and keloids in these locations does not indicate keloidism and can be considered keloidal tendencies. How is that determined? First of all, the depth of skin soft tissue injury and the occurrence of keloid scars should be consistent. Generally speaking, deep II° burns in the burn subdivision, shallow II° burns with infection are prone to hyperplastic keloid scars, and of course, locations with high tension after trauma or surgery will have the same result, while injury sites that are on the back of the shoulder, forehead, or earlobe of the body are prone to keloid scars, so having keloid scars cannot be considered keloid, and vice versa If the injury is less than this depth, or if there is no reason for scarring, regardless of the location, and whether it is a hyperplastic scar or a keloid, it has to be considered as keloid. The second is the relationship between the injury boundary and the extent of scarring. Usually, in patients without scarring tendency or keloid, the keloid will not appear beyond the injury boundary, but of course, keloid is characterized by invasion of normal tissues and will also exceed the injury boundary, so if a keloid appears where a proliferative scar should occur, it should also be considered keloid. To summarize, in two words: keloid can be considered when a scar grows where it should not and when it grows past where it should. This part of the population would be at great risk when performing surgery or invasive operations. In fact, there is no proven laboratory method to predict and confirm the diagnosis of keloid, the percentage of patients with true keloid in the population is very low, and the final diagnosis must be made by a specialist.