“Xanthoma is a skin condition in which certain fats build up under the surface of the skin.
“Xanthomas vary in size. Some are very small. Others are bigger than 3 inches [7.5 centimetres] in diameter. They may appear anywhere on the body.”
They can appear anywhere on the body, but they’re most likely to develop on the elbows, joints, knees, hands, feet, or buttocks, it added.
But, xanthomas could also be caused by diabetes, certain cancers, liver scarring, and an underactive thyroid.