Skin Tags: Causes, Symptoms and Treatment
Skin tags are small, benign growths of skin attached to the body by a thin stalk. They are harmless but can be cosmetically bothersome or cause discomfort due to friction.
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Skin tags are small, benign growths of skin attached to the body by a thin stalk. They are harmless but can be cosmetically bothersome or cause discomfort due to friction.
What Are Skin Tags?
Skin tags (medically known as acrochorda or fibroepithelial polyps) are small, soft, benign skin growths that hang off the skin by a thin stalk of tissue. They consist of loose connective tissue and small blood vessels covered by normal skin. Skin tags are completely harmless and non-contagious, but they may be cosmetically undesirable or become irritated through friction from clothing or jewelry.
Causes and Risk Factors
The exact cause of skin tags is not fully understood, but several risk factors have been identified:
- Skin friction: Repeated rubbing of skin against skin or clothing is considered the primary trigger.
- Obesity: People with excess body weight are more commonly affected due to increased skin folds.
- Hormonal changes: Skin tags may appear more frequently during pregnancy.
- Age: The likelihood of developing skin tags increases with age.
- Genetic predisposition: A family history of skin tags can increase individual risk.
- Insulin resistance and type 2 diabetes: A well-documented association exists between skin tags and impaired glucose metabolism.
Common Locations
Skin tags typically occur in areas where skin rubs against skin or where clothing causes repeated friction:
- Neck and nape
- Armpits
- Groin area
- Under the breasts (inframammary fold)
- Eyelids
- Back and abdominal folds
Symptoms
In most cases, skin tags do not cause any symptoms. However, the following may occasionally occur:
- Itching or mild irritation due to friction
- Pain or bleeding if the skin tag becomes twisted or injured
- Redness or inflammation from mechanical stress
- Cosmetic concern, especially on the face or neck
Diagnosis
Skin tags are typically diagnosed through a straightforward clinical examination by a dermatologist. The characteristic appearance -- a soft, skin-colored to slightly brownish growth on a thin stalk -- is usually sufficient for diagnosis. In rare cases where the nature of the skin lesion is uncertain, dermoscopy or histological analysis of the removed tissue may be performed to rule out other conditions such as fibromas, warts, or benign tumors.
Treatment
Skin tags do not require medical treatment. However, removal is an option when they cause cosmetic concern or physical discomfort. Common treatment methods include:
- Cryotherapy: Freezing the skin tag with liquid nitrogen to destroy the tissue.
- Electrosurgery (electrocautery): Removing the skin tag using an electrical current.
- Laser treatment: Precise removal using a laser, particularly in sensitive areas.
- Surgical excision: Cutting off the skin tag with scissors or a scalpel, often under local anesthesia.
- Ligation: Tying off the stalk to cut off blood supply, causing the tag to fall off naturally.
Home removal methods such as cutting or tying off skin tags without medical supervision are not recommended, as they carry a risk of infection or scarring.
Prevention
Complete prevention is not always possible, but the following measures may help reduce the risk:
- Maintaining a healthy body weight to reduce skin folds
- Wearing soft, loosely fitted clothing
- Using protective bandages or talcum powder on areas prone to friction
- Regular skin care to maintain skin elasticity
References
- Schwartz, R.A. - Acrochordon (Skin Tag). Medscape Reference, 2023. Available at: https://emedicine.medscape.com/article/1056254-overview
- Roh, E.K. et al. - Skin tags are more frequently associated with metabolic syndrome and insulin resistance. Journal of the European Academy of Dermatology and Venereology, 2022.
- Wolff, K. et al. - Fitzpatrick's Dermatology in General Medicine, 9th edition. McGraw-Hill Education, 2019.
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