Health A-Z Slideshows

Mono may be known as the “kissing disease.” But that’s not the only way you can catch this viral infection. Find out how to tell you have it and what to do about it.

Why are your fingers puffy or swollen? And might they be something serious? Learns about some surprising reasons behind this condition.

It can be a shock to see blood in your pee. A number of conditions can cause it. Find out why it happens and what to do about it.

If you’re thinking about using an at-home DNA test kit, here are a few things to think about before mailing it in.

Always shivering when others aren’t? Here are some tips for warming up if you’re a “cold-natured” person.

Can’t chill out -- literally? Try these tips to cool off so you’re more comfortable.

Learn how things you have around the house -- from batteries to large TV sets -- can cause injuries to you and your kids. Find out what you need to do keep your family safe.

Are your housewares showing wear? Find out when you should replace everyday items to keep your home safe and healthy.

Do you smell something no one else does? Is it hard to breathe? Different conditions affect smell and breathing. Learn what your nose says about health.

It's no fun to wake in the middle of the night with your sheets drenched. Learn some common (and not-so-common) causes of night sweats and what to do.

Napping isn’t just for babies. It can be great for adults, too. Learn why.

Find out how dehydration, low blood pressure, arrhythmia, and other problems can make you feel woozy and even faint.

Menopause isn't the only thing that causes hot flashes. Find out what else can trigger these sudden waves of heat as your body tries to cool down.

From shoes to beauty routines to health problems, lots of things can cause foot trouble. Check out some easy ways you can keep your feet in good shape.

You’ve probably heard your body trying to tell you something after a session at the gym, but what was it? WebMD helps you sort through the noise to get to the real message.

While too much time in the sun can be bad for your skin and may lead to serious health problems, small doses can be good for you in several ways.

Can't figure out why you feel so hot? Our gallery shows you common and not so common conditions, substances, and situations that can make you feel hot.

Do you sometimes feel cold for no reason? Find out more about conditions that can make you feel chilly.

You can’t control how tall you are, but your height can play a role in some medical conditions. Find out more about how your height can affect your health.

You might go to the doctor expecting a quick answer about what ails you, but it’s not always that easy. Find out more about conditions that are hard to diagnose.

Doing everything you're supposed to do to take care of yourself can seem overwhelming. Which rules can you bend without harming your health?

We’ve made a lot of progress against illnesses like tuberculosis and scarlet fever. But more people seem to be coming down with those and other serious diseases that had looked to be on the way out.

Are you keeping your home as healthy as you could? Find out when you should clean or replace these common household and personal items.

When you go for a dip, you can come across some nasty bacteria, viruses, and chemicals. Find out what to watch out for and how to protect yourself.

Find out why your doctor asks about your relatives’ health conditions and how you can get the information if you don’t know.