It is believed that skin tags develop as a result of friction between the skin and clothing. Skin tags are generally seen on the underarms, neck, groin folds and upper chest, although they can also be present on the eyelids, according to eMedicineHealth.
Skin tags are more prevalent in obese and overweight individuals due to a heightened incidence of friction and skin-to-skin contact. Even though children can develop skin tags, it is not as common to see skin tags in youths as it is in middle-aged people and the elderly.
Some studies have found that people inherit the susceptibility to develop skin tags. Skin tags around the anal opening, which are known as perianal skin tags, are often seen in those with Crohn's disease. Pregnancy and the hormonal changes experienced by women who are pregnant may also put an individual at an increased risk of developing skin tags or stimulate their growth, especially during the pregnancy's second trimester, according to eMedicineHealth.
It is important to note that skin tags are not cancerous as a general rule. Still, there have been reports of skin cancers in skin tags, although it is extremely unlikely.
Removal of skin tags usually involves cutting the skin tag off with scissors or a scalpel. Freezing or burning the tag is also an option, notes WebMD.