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Dr. Turegano says keloids can form after an injury, but they can also occur in a surgical scar, ear piercing, tattoo, or in skin conditions like acne or chicken pox.
Persons of any age can develop a keloid. Children under 10 are less likely to develop keloids, even from ear piercing. Keloids may also develop from pseudofolliculitis barbae; continued shaving when one has razor bumps will cause irritation to the bumps, infection, and over time keloids will form. Persons with razor bumps are advised to stop ...
They can be caused by surgery, cuts, accident, acne or, sometimes, body piercings. In some people, keloid scars form spontaneously. Although they can be a cosmetic problem, keloid scars are only inert masses of collagen and therefore completely harmless and not cancerous. However, they can be itchy or painful in some individuals.
Bacterium-related cutaneous conditions often have distinct morphologic characteristics that may be an indication of a generalized systemic process or simply an isolated superficial infection. [69] [70] Aeromonas infection; African tick bite fever; American tick bite fever (Rickettsia parkeri infection) Arcanobacterium haemolyticum infection
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The risk of an ear piercing becoming infected is the highest during warm weather and shortly after the piercing has taken place. Case studies show that normal ear piercing infections may develop into serious infections caused by Pseudomonas and Staphylococcus , which are reported at rates of 10–30%. [ 14 ]
Prolonged cases of AKN can cause keloid formation due to chronic irritation from folliculitis. Bacterial folliculitis and acne can mimic the appearance of AKN; however, unlike acne, comedones are not seen with AKN. Treatments for AKN aim to reduce inflammation and prevent infections and scarring.
Where folliculitis barbae is caused by viral or bacterial infections, pseudofolliculitis is created by irritation from shaving and ingrown hairs. Pseudofolliculitis nuchae , a related condition, occurs on the back of the neck, often along the posterior hairline, when curved hairs are cut short and allowed to grow back into the skin.