With its loose, bunchy skin and sun-starved complexion, the naked mole-rat (Heterocephalus glaber) recalls an uncooked bratwurst dried on permanent press—and it might be one of the last creatures ...

A mole can bleed if it’s been injured. A bleeding mole may also be caused by skin cancer. If a mole is bleeding and is also asymmetrical, has variations in color, has a poorly defined border, is ...

Moles can itch for many reasons, including exposure to certain skin care products and chemicals. Most moles are harmless, but in rare cases, moles can itch due to cancer. Moles typically change very ...

A mole is a colored spot on your skin caused by a high concentration of pigment-producing cells called melanocytes. The medical term for a pigmented mole is a melanocytic nevus, or simply nevus.

A cancerous mole is a sign of melanoma of the skin. A cancerous mole is typically a new mole or an existing mole that has undergone certain changes. Treatment may involve surgery to remove the mole.