In-depth

Canker sore

Although canker sores aren't serious, they can be painful, and in some cases may be a sign of another health problem.

Dental exam

Dental exam — Overview covers preparation and what to expect during a dental exam.

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Gingivitis

Gingivitis is a mild form of gum disease that causes inflammation and bleeding. Untreated, it can lead to periodontitis, a far more serious condition.

Oral health basics

How often do you need to replace your toothbrush? Is mouth rinse necessary? Get the facts on how to keep your smile healthy.

Swollen lymph nodes

Swollen lymph nodes usually indicate an infection, particularly in children. However, there are many causes, ranging from the common cold to cancer.

X-ray

X-rays are a form of radiation that can make images of your bones and internal organs.

Apr. 09, 2013

You Are ... The Campaign for Mayo Clinic

Mayo Clinic is a not-for-profit organization. Make a difference today.