They develop in people with much skin pigment, so they are found in blacks and Asians. Keloids occur because of an abnormal healing process, and the scar tissue thus formed extends beyond the boundary of the original trauma. They contain excessive quantities of collagen, fibronectin, and chondroitin sulfate.
Here's what seems to increase the risk: African, Asian, or Latin-American descent: In the United States, keloids are more common in Black and Latin Americans than people with lighter skin tones. Whereas, in Asia, ethnic Chinese have the highest risk of developing keloids.
Keloids are most common in people younger than 30. Black people, Asians, and Hispanics are more prone to developing keloids. Keloids often run in families. Sometimes, a person may not recall what injury caused a keloid to form.
Although keloids have been documented in virtually all major ethnic groups, they are most commonly seen in individuals of African, Asian, and, to a lesser degree, Hispanic and Mediterranean descent. Dark-skinned individuals form keloids 15 times more frequently than do their lighter-skinned counterparts.
Considerable studies have found that a darker skin increases the risk of scar formation [11, 12]. Asians are more susceptible to hypertrophic scars than Caucasians [13]. This suggests great differences in pathogenesis of scarring between Asians and Caucasians.
Risk Factors
Although a keloid scar can form on anyone, some ethnic groups are at a greater risk. People with more melanin in their skin, such as Black people, Asians, and Hispanics, are more susceptible.
Asian Americans are most at risk for the following health conditions: cancer, heart disease, stroke, unintentional injuries (accidents), and diabetes.
It is still unclear why some people are more likely to develop keloids rather than regular scars, but it seems that the longer a wound takes to heal, the greater the risk a person has of developing an overgrowth of scar tissue. Other things that may increase your risk include the following: A family history of keloids.
Keloid surgery: Your dermatologist can surgically cut out the keloid. While this may seem like a permanent solution, it's important to know that nearly 100% of keloids return after this treatment. To reduce the risk of a keloid returning after surgical removal, most patients have another treatment after surgery.
Keloids are most common in people with brown or Black skin. The reason for this predisposition is unknown. Having a personal or family history of keloids. Keloids can run in families, indicating that the tendency might be inherited.
After the wound heals, apply silicone gel sheets or silicone gel. You can buy both of these products without a prescription. They can help prevent a keloid. To get the best results, you apply a new sheet or gel to the area every day.
It is a result of an overgrowth of granulation tissue (collagen type 3) at the site of a healed skin injury which is then slowly replaced by collagen type 1. Keloids are firm, rubbery lesions or shiny, fibrous nodules, and can vary from pink to the color of the person's skin or red to dark brown in color.
Wubeizi (Rhus chinensis Mill.) ointment has been shown as an effective treatment for keloids.
Of those, the keloids rate for African Americans was 0.8 percent, while the rate for Caucasians was 0.1 percent. After adjusting for age and gender, the study showed that the odds of getting a keloid for African Americans were 7.1 times that of Caucasians.
There are no proven methods of removing keloid scars naturally. Some clinical studies have shown that onion extract used orally or on the skin might possibly be effective in improving the appearance of keloid scars and reducing itchiness and discomfort.
Keloids rarely go away on their own, but they don't generally need to be treated unless they're causing discomfort or are affecting how you feel about your appearance. If they're surgically removed, they often grow back.
Conclusion: Keloids never completely disappear to leave skin with normal texture, however they can resolve (flatten and soften) so they no longer burden patients in approximately one third of cases. Scars resolving spontaneously do so early in the disease. Those that don't may resolve after many years of treatment.
Keloid disease is considered a genetic disease due to a strong genetic susceptibility to keloid formation as it occurs predominantly in people of African and Asian descent, runs in families, and has been found in twins.
There was a significant negative correlation between serum 25-Hydroxyvitamin D and duration of keloid. Accordingly, low serum and tissue 25-Hydroxyvitamin D and deficient tissue vitamin D receptors contribute to the pathogenesis of keloids.
It may be very tempting to squeeze an ear keloid. However, you can't pop an ear keloid. Ear keloids are a type of scar tissue, so there isn't any pus to squeeze out, like a pimple. Trying to pop a keloid on your ear can damage your skin and introduce bacteria, which can cause an infection.
Keloids are a type of raised scar. They occur where the skin has healed after an injury. They can grow to be much larger than the original injury that caused the scar. They are not at all common, but are more likely for people who have dark skin.
Several important factors contribute to the higher rates of TB among racial and ethnic minority groups, including Asian persons. These factors include being born in a country with a high rate of TB disease or travel to a country with a high rate of TB disease.
South Asian people are also more likely to develop diabetes at a younger age. Coronary heart disease (CHD) is also more common in south Asian people, as is the risk of dying early from CHD. Experts aren't sure why this is the case, but it may be linked to diet, lifestyle and different ways of storing fat in the body.
80.457 years. Source: United Nations, Department of Economic and Social Affairs, Population Division (2022). World Population Prospects 2022, Online Edition.