Love bites, also known as hickeys, are caused by suction from someone's lips or mouth, which breaks blood vessels under the skin. This results in temporary redness and bruising.
While love bites may look concerning, they are harmless and heal on their own within a few days. They are not related to any type of cancer.
It's important to note that any unusual lumps or bumps on your skin should be checked by a doctor to rule out any serious medical conditions.