Skin tags, known to science as acrochorda, are small, harmless growths. They tend to occur in places where the skin forms creases such as the neck, armpit, groin or eyelid. These loose skin flaps or mushroom-shaped bumps are usually less a centimeter in size. They may be the same color as the skin or take on a darker shade. Depending on their size, color, number and location, acrochorda can range from barely noticeable to unsightly and embarrassing. There are several methods which can be used to remove skin tags.