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A bunion is a bony bump on the joint at the base of the big toe. A bunion changes the shape of the foot. It can also cause pain and problems using the foot.

Endoscopic endonasal surgery is a type of procedure to treat problems, such as a tumor, in the front or bottom of the brain or top of the spinal cord.

Infectious tenosynovitis is an infection of a tendon and its protective sheath. This infection is most common in the finger, hand, or wrist, and it needs quick treatment to prevent permanent damage.

Tinea cruris is a type of fungal infection. The fungus infects the skin in the groin. It is more commonly called jock itch.

Tinea unguium is a type of fungal infection. The fungus infects the fingernails and, more commonly, the toenails. It's more common in men, older adults, and people who have diabetes or peripheral vascular disease.

Yersiniosis is a foodborne illness. It causes inflammation in the small intestine and colon. It is more common in children.

Sacral nerve stimulation helps treat bladder problems caused by diseases of the nervous system. Before sacral nerve stimulation is done, you need a trial or test procedure to see if it will work. This is called percutaneous nerve evaluation (PNE). Read on to learn the details.

Radiofrequency denervation is a treatment for some kinds of lower back and neck pain. It uses an electrical current created by radio waves.

A straddle injury is when an injury occurs to the groin area between the thighs. Learn more about this type of injury, including cause, symptoms, diagnosis, and treatment.