
Keloid scar - Symptoms and causes - Mayo Clinic
2023年7月13日 · Collagen — a protein found throughout the body — is useful to wound healing, but when the body produces too much, keloids can form. Keloid growth might be triggered by any sort of skin injury — an insect bite, acne, an injection, body piercing, burns, hair removal, and even minor scratches and bumps. Sometimes keloids form for no obvious reason.
Keloid - Wikipedia
Keloid, also known as keloid disorder and keloidal scar, [1] is the formation of a type of scar which, depending on its maturity, is composed mainly of either type III (early) or type I (late) collagen.
Hypertrophic Scars and Keloids: A Complete Overview - DermNet
What are keloids and hypertrophic scars? A keloid scar is a firm, smooth, hard growth that occurs as a result of excessive scar formation. Keloids occur after skin injury; rarely, keloids can occur spontaneously without any significant preceding skin injury.
Keloids: A Review of Etiology, Prevention, and Treatment - PMC
Keloids are abnormal scars that cause significant emotional and physical distress in patients when inadequately treated. Keloid formation is theorized to occur as a result of an imbalance between an increased synthesis of collagen and extracellular matrix and …
Keloid Scars: Symptoms, Causes, and Treatments - Healthline
2023年7月28日 · In some cases, extra scar tissue grows, forming smooth, hard growths called keloids. Keloids can be much larger than the original wound. They’re most commonly found on the chest, shoulders,...
Keloid - StatPearls - NCBI Bookshelf
2023年7月17日 · Keloids result from abnormal wound healing in response to skin trauma or inflammation. Keloid development rests on genetic and environmental factors. Higher incidences are seen in darker skinned individuals of African, Asian, and Hispanic descent.
Keloid scars: Diagnosis and treatment - American Academy of Dermatology
Many people who have keloids want to know about treatment. A keloid can feel uncomfortable, itchy, or painful. If a keloid develops over a shoulder or other joint, it can limit how far you can move. Many people simply dislike the way keloids look. Here’s what you can expect when you see a board-certified dermatologist for treatment.
Keloids - Dermatologic Disorders - MSD Manual Professional Edition
Keloids are smooth overgrowths of fibroblastic tissue that arise in an area of injury (eg, lacerations, surgical scars, truncal acne) or, occasionally, spontaneously. Keloids are more …
Keloids - Skin Disorders - Merck Manual Consumer Version
Keloids are an extreme overgrowth of scar tissue. They may form in the months after an injury. They may be raised as much as ¼ inch (about 0.5 centimeters) or more above the surface of the skin. Keloids may result from any injury, including surgical incisions and acne.
Keloids: MedlinePlus Medical Encyclopedia
2022年11月18日 · Keloids can form after skin injuries from: Keloids are most common in people younger than 30. Black people, Asians, and Hispanics are more prone to developing keloids. …