Acrochordons a skin tag is a small flap of tissue that hangs off the skin by a connecting stalk skin tags are not dangerous skin tags appear most often in women especially with weight gain and in elderly people irritation can occur if the skin tag frequency rubs against clothing or jewellery women are more likely to develop skin tags than men skin tags are usually a few millimetres in size although can be bigger they are usually found on the neck in the armpits around the groin