Keloid Scar

A keloid scar is a raised, firm scar that grows beyond the original boundaries of a skin injury. It is usually benign, but it can cause itching, tenderness, pain, cosmetic concern, and occasionally restricted movement when it forms over a joint or a tight skin area. ^[1][2]

Keloids may develop after acne, surgery, piercing, burns, tattoos, or seemingly minor skin trauma. Their behavior differs from ordinary scar tissue, which is why persistent or enlarging raised scars often merit dermatologic assessment. ^[1][3]

What is a keloid scar?

A keloid scar is an exaggerated healing response in which scar tissue becomes thick, raised, and extends beyond the edge of the original wound. Unlike an ordinary scar, it does not stay confined to the injured area and may continue to enlarge over time. ^[1][3]

Keloids are common on the earlobes, chest, shoulders, jawline, and upper back. They are not dangerous in the same way a cancer is dangerous, but they can be persistent and distressing. ^[1][4]

What are the symptoms of a keloid scar?

Typical findings include a shiny or rubbery raised lesion that may be pink, red, brown, or darker than the surrounding skin depending on skin tone. Itching, tenderness, burning, or pain can accompany the visible thickening. ^[1][2]

Large keloids may create a sense of tightness and can interfere with comfort or motion if they develop in a high-friction or high-movement area. Earlobe keloids often appear as round nodules around a piercing site. ^[1][3]

Why do keloids develop, and who is at higher risk?

Keloids form when scar production remains overactive during wound healing. The exact mechanism is not fully understood, but genetics, skin type, age, and body site are important influences. ^[1][3]

Risk is often higher in people with a personal or family history of keloids and in those who have undergone piercings, surgery, acne-related scarring, or repeated skin trauma. Even a relatively small wound can trigger a large keloid in a susceptible person. ^[1][4]

How is the diagnosis made?

Diagnosis is usually clinical and based on the scar’s appearance, growth pattern, and history of prior injury. A dermatologist often distinguishes a keloid from a hypertrophic scar by noting that the keloid extends beyond the original wound edges. ^[1][3]

In unusual cases, further evaluation may be considered to exclude other skin lesions, but biopsy is not routinely required when the diagnosis is straightforward. ^[1][2]

How is keloid treatment approached?

Treatment is often multimodal because keloids can recur. Options may include corticosteroid injections, silicone-based scar care, pressure therapy, cryotherapy, laser approaches, surgery combined with adjunctive therapy, or other dermatologist-guided interventions. ^[1][2]

No single approach is ideal for every scar. Size, body location, prior recurrence, and the patient’s goals all influence the management plan. ^[1][3]

When should a doctor be consulted, and what matters in daily life?

Medical review is sensible when a scar is enlarging, itchy, painful, cosmetically distressing, or causing tightness. Evaluation is also useful before elective piercing if there is a personal or family tendency to develop keloids. ^[1][3]

Daily care focuses on avoiding repeated trauma, following scar-care instructions, and understanding that untreated keloids usually do not disappear on their own. Prevention matters because recurrence is often easier to avoid than to reverse. ^[1][4]

FAQ

What is the difference between a keloid and a normal scar?

A normal scar stays within the edges of the original wound, while a keloid grows beyond those borders and may continue enlarging over time. ^[1][2]

Can a keloid go away on its own?

Keloids usually do not disappear spontaneously. They may stabilize, but persistent raised tissue often remains unless treated. ^[1][3]

Is surgery alone enough for a keloid?

Often not. Surgery by itself can be followed by recurrence, which is why it is frequently combined with other treatments such as injections or pressure therapy. ^[2][3]

Are keloids contagious?

No. A keloid is not an infection and cannot spread from one person to another. ^[1][3]

How should keloid risk be assessed before a piercing?

A previous keloid or a strong family history suggests higher risk, so obtaining professional dermatology advice before piercing is a safer approach. ^[3][4]