Skin tags are tiny, soft growths that develop on the surface of the skin and are typically harmless. Most appear in shades similar to a person’s natural skin tone, though they may sometimes look slightly darker. They usually hang from the skin by a thin stalk, giving them a small, dangling appearance that can be surprising when first noticed. While their look may raise questions, skin tags are very common and are considered a normal skin variation experienced by many adults.
People often discover a skin tag unexpectedly while washing, dressing, or looking in the mirror. Because these growths usually form gradually, they may go unnoticed until they become large enough to feel or see easily. This slow development explains why they sometimes seem to appear “overnight,” even though the process has been happening quietly over time. In most cases, they do not cause pain or discomfort unless they become irritated by clothing or jewelry.
Specialists in Dermatology explain that skin tags rarely develop from a single cause. Instead, several everyday factors can contribute to their formation. Genetic tendencies, natural hormonal changes, and common lifestyle elements all play a role in why some individuals develop them more frequently than others. These influences also help explain why skin tags tend to appear in particular parts of the body.
One of the most commonly recognized factors is repeated skin friction. Areas where skin rubs against skin—or against fabrics—are more likely to develop these small growths. For this reason, skin tags are often found on the neck, under the arms, around the eyelids, or within folds of skin where movement occurs regularly. Over time, this repeated contact can encourage the formation of the small, soft projections commonly known as skin tags.