In most cases, people pass kidney stones without any major problems. Still, some patients with kidney stones may face complications.

Here's the thing about having a chronic disease that weakens your immune system: It puts you at higher risk for developing cancer, in addition to the disease you already deal with.

It's a challenge to take medication perfectly every day, especially if you're on it for the rest of your life. So is it a big deal if you slip up every once in a while?

People with rheumatoid arthritis may have a higher risk of infection than others, but doctors have found it hard to pinpoint each patient's individual risk. Now, doctors may have a new way to rate infection risk.

HIV-related dementia, known as AIDS dementia complex, can create memory problems and changes in behavior. Scientists are trying to understand how HIV affects the brain.

Mexico is the world's largest supplier of mangoes. But the fruit has had a hard time getting across the border since being linked to an outbreak of salmonella in the U.S. and Canada.

September is the time to get your family ready for this year's flu season. When should children start getting vaccinated against flu?

What’s the best way to get the word out about major health issues? For certain groups, a short story on the radio can reach and educate a lot of people easily and successfully.

They seem like the perfect pets: they're slow, mild and quiet, and they come with their own case. But turtles, like other reptiles, carry a danger for small children — salmonella.

Vaccines may be one of medicine's greatest inventions, but they're not perfect. Some can lose effectiveness over time, like the DTaP that protects against whooping cough.