Skin tags—small, soft growths that hang from the skin—are a common dermatological phenomenon. Usually flesh-colored or slightly darker, they’re generally harmless, but many people wonder why they suddenly appear.
Friction and Repeated Skin Irritation
Dermatologists note that repeated friction is a primary factor in skin tag formation. Skin rubbing against clothing or other skin can trigger these growths over time. Common areas for skin tags include:
- Neck
- Underarms
- Groin
- Beneath the breasts
Tighter clothing and natural skin folds increase friction, creating an environment conducive to developing skin tags.
Aging and Natural Skin Changes
Skin tags are more frequent as people age, often appearing in the 40s or 50s. Changes in collagen and elastin fibers make skin more sensitive to pressure and irritation, making small growths more likely. Experts emphasize that these changes are a normal part of aging and not usually a cause for concern.
While skin tags are benign, dermatologists recommend monitoring them for changes in color, size, or shape and seeking medical advice if anything seems unusual.
