Rare, deadly, and often missed, some skin cancers develop in areas that rarely see the sun. Scientists are still learning about them, but here's what we know.

A painful sore throat is a signature symptom of an Omicron subvariant called NB.1.8.1, or Nimbus. It now makes up about a third of U.S. COVID-19 cases. Find out what you can do to get relief.

What’s the most overrated strategy for protecting your brain? And what’s the one you should actually be using?

Living with bipolar disorder isn’t just about mood swings: it’s about carrying an invisible weight that few people understand.

Phocomelia is a rare condition that affects limb development. Learn what causes it, the signs to look for, and how it's managed.

With persistent genital arousal disorder, arousal happens for women often and for a long time, but there’s nothing triggering the desire.

Learn about ischial bursitis, how it affects your sit bones, its symptoms, causes, treatments, prevention tips, and when to seek medical attention.

Osteitis pubis is a painful condition that causes inflammation around the center of the pelvis. Learn about its causes, symptoms, diagnosis, treatment, and more ...

Polychromasia is a blood condition marked by immature red blood cells. Learn what causes it, how it’s diagnosed, its symptoms and Treatment options.

Aquagenic urticaria is a rare condition in which water causes hives. Learn about its symptoms, causes, diagnosis, and treatment options.

Learn what an umbilical granuloma is, why it forms in newborns, how it's treated, and when to see a doctor for this common post-birth belly button issue.

June 19, 2025 – The FDA has approved the first twice-yearly shot to reduce the risk of HIV infections.