The sternum, or breastbone, is the flat bone where the ribs meet. Sometimes, the joints can pop or crack as a person stretches or moves. A muscle spasm, an injury, costochondritis, and surgery are ...

A dermatome is an area of skin that a spinal nerve supplies. Spinal nerves branch off the spinal cord at different points along the spine. There are 31 pairs of different spinal nerves.

This is because each spinal nerve root—one on each side of the body—services a specific area of skin called a dermatome. When a shingles outbreak occurs, only that dermatome on that side of the body ...

Armpit pain can have many causes, ranging from injuries and irritants to infections that cause swollen lymph nodes. Less commonly, the pain—referred to as axillary pain—may be due to an autoimmune or ...

A skin lump or bump covered by normal skin Skin swelling just in one spot (localized) is also included ...