👉 Cotillons, also known as "lumps" or "nipples," are a type of benign growth that is typically found on the surface of the skin. They can appear anywhere on the body, but they are most commonly found on the arms, thighs, and ankles. Cotillons are usually small and round in shape, and they may be dark brown, red, or blue in color. They often appear as a cluster of tiny bumps that can be painful to the touch
