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Second-degree heart block causes a missed heartbeat and an irregular pulse. Learn about what it is, its causes, and how it's treated.

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.

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.

Endocervical curettage is a procedure to take some tissue from inside your cervix. This tissue is sent to a lab. It is checked for any problems, such as cancer.