Skin Tag, Wart or Seborrheic Keratosis? How to Tell the Difference Skin tags, warts and seborrheic keratoses can look surprisingly similar to the untrained eye, but they’re actually very different. Skin tags Soft, small growths that hang off the skin, usually flesh-coloured or slightly darker, with a smooth surface. They love friction areas like the neck, underarms, eyelids, groin, and under the bra line. If you can gently move it and it feels like a tiny flap of loose skin, it’s likely a skin tag. Warts Rough, raised and often described as “cauliflower-like” in texture. They’re caused by a virus (HPV), which means they can spread to other parts of