What does a pain under chin mean?

Chin vs neck: It is difficult to distinguish between the chin and the neck. A pain in the chin could mean several different things and your medical history and physical examination will play a large role in determining ow to further evaluate the cause of your pain. For example if you faustained trauma, x-rays may be ordered to look for a fracture. A mass or swelling could be a sign of a salivary tumor, etc.