Symptoms

Everyone experiences abdominal pain from time to time. Find out when it might be cause for concern.

Anal pain: Symptom — Overview covers definition, possible causes of this common symptom.

Learn about the possible causes of this type of pain and what to do about it.

Arm pain: Symptom — Overview covers definition, possible causes of this symptom.

A problem in any part of your spine can cause back pain. Here's a look at some of the causes of this common symptom.

Learn what can cause a curved erection and when you may need to see a health care provider.

Learn what may cause vaginal bleeding during pregnancy and when you should see a doctor about it.

Blood clots: Symptom — Overview covers definition, possible causes of this symptom.

This symptom can be scary, but the cause is most often not cancer. Find out possible causes and when to see a doctor.

Learn more about these abnormal areas sometimes seen incidentally during brain imaging.

Most breast calcifications are benign. Find out more about what can cause them, what they look like, and when to see a doctor.

A breast lump could be due to something harmless. Or it could be cancer. Learn breast lump causes and find out when you need to see a health care provider.

Overview covers the definition and possible causes of breast rashes.

Burning feet: Symptom — Overview covers definition, possible causes and when to see a doctor for this often nerve-related symptom.

Feeling like your hands are always cold may not be cause for concern. But sometimes a blood vessel or nerve problem is to blame. Learn the causes of cold hands.

Cough: Symptom — Your body's response when something irritates your throat or airways and possible causes of this symptom.

Coughing up blood: Symptom — Comprehensive overview covers possible causes of coughing up blood.

Overview covers causes, remedies for this common symptom.

Diarrhea: Symptom — Overview covers definition, causes of acute and chronic diarrhea.

What does it mean if you become dizzy? Learn about the various causes and when to seek treatment.

It's possible for men to reach sexual climax without ejaculating. Learn about the possible causes.

Elbow pain: Symptom — Overview covers definition, possible causes of this symptom.

Inflamed liver cells can leak higher levels of liver enzymes into the bloodstream. The symptom is often mild and short-term.

Learn more about a condition in which white blood cell counts are high enough to cause concern.

Excessive sweating: Symptom — Overview covers definition, possible causes of this symptom.

Have a burning, itching or throbbing eye? Find out possible causes of eye pain and when it's time to call the doctor.

Most people experience eye twitching now and then, but it's not always harmless. Find out when these spasms might mean something more serious.

Many conditions and lifestyle factors can cause this common symptom.

Learn the possible causes of this symptom and what to do about it.

Many things can trigger frequent bowel movements. Find out what may be causing your extra bathroom trips and when it's time to call a healthcare professional.

Learn what can make you urinate more than usual and what signs might mean it's because of something serious.

Learn about the possible causes of green stools in adults and infants.

Learn more about the causes and symptoms of this type of pain. Also find out how you can treat it at home and when to get a checkup.

Headache: Symptom — Overview covers definition, possible causes of this painful symptom.

Learn about possible causes of this common symptom and what to do about it.

What does it mean if you have high blood proteins? Learn about the role proteins play in your body and the possible causes of this blood test result.

An above-normal level of hemoglobin in your blood usually occurs when your body needs more oxygen, often because you smoke or live at high altitude.

What does it mean to have high potassium? Learn about the role potassium plays in the body and the possible causes of this blood test result.

Learn the possible causes of too many oxygen-transporting cells.

Find out possible causes of having too much uric acid in the blood.

Learn the causes of this increase in disease-fighting cells in the blood.

Learn about the causes and treatment for pain in and around the hip joint.

This frequently uncomfortable symptom is part of proper digestion. Find out when it might be cause for concern.

Pain in a joint can be a symptom of many illnesses. Most often it's caused by some type of arthritis.

Find out how this type of pain may feel and what health problems can cause it.

Knee pain: Symptom — Overview covers definition, possible causes of knee joint pain.

Leg pain: Symptom — Overview covers definition, possible causes of this symptom.

Leg swelling is a common sign of fluid buildup. It might happen from standing or sitting too long. Or it might be a sign of a more serious condition.

A stuffy nose is one cause of this symptom. Learn about other causes and when it might be serious.

Learn causes of low blood oxygen and find out when to call your doctor.

A low hemoglobin count on a blood test could be normal for you, or it could indicate that you have a condition that needs medical attention.

Low potassium (hypokalemia): Symptom — Overview covers what can cause this blood test result.

Learn the causes of this decrease in disease-fighting cells in the blood.

A brief increase in certain white blood cells, called lymphocytes, is typical after an infection. Too high a count can mean something more serious.

Muscle pain: Symptom — Overview covers definition, possible causes of this symptom.

Learn more about what can cause a stuffy nose and how to relieve it.

Motion sickness and drinking alcohol are among the many common causes of nausea and vomiting. Serious diseases can also have this effect.

Stress, strain and sitting for long hours at a computer are some of the many causes of this common pain.

Neutropenia: Symptom — Overview covers definition, possible causes of a lack of certain white blood cells.

Find out about this common nighttime pain in the calf, foot or thigh and how to ease it.

Learn what conditions and medications might cause these sleep-disturbing sweats.

Fluid leaking from the nipples isn't often a sign of breast cancer. Learn more about the possible causes and when to see a doctor.

Nosebleeds: Symptom — Comprehensive overview covers definition, possible causes of nosebleeds.

Trauma, nervous system disorders and chronic diseases are some of the possible causes of this common symptom.

Infections, chronic health conditions and nervous system disorders are possible causes of this loss of feeling in hands.

Learn about possible causes for pain, burning or other trouble while peeing and when to get medical help.

Overview covers definition and possible causes of peeling skin. Includes photos

This type of pain can be dull or sharp. You may feel it all the time or only sometimes. Learn about possible causes and when to seek care.

Overview covers definition, possible causes of this skin symptom caused by bleeding of tiny blood vessels.

Learn about possible causes of elevated protein levels in urine tests.

Blood in your stool, on the toilet paper or in the toilet bowl can have various causes. See your doctor if it lasts more than a day or two.

This eye condition often looks much worse than it feels. Find out possible causes of inflamed, irritated eyes and when to call the doctor.

Learn more about how to treat this common symptom and when to see a health care provider.

Problems breathing can come on suddenly or last for weeks or longer. Most cases are due to heart or lung conditions, but there are many other causes.

Shoulder pain: Symptom — Comprehensive overview covers definition, possible causes of pain in the shoulder.

If you're experiencing this symptom, an injury or underlying condition may be the culprit.

Unexplained weight loss has many causes — some serious. Find out when losing weight without trying calls for a medical evaluation.

Urine that smells odd might point to an underlying disease or condition.

Bleeding from your vagina that's different from your period might signal a problem. Learn about possible causes and when you should see a doctor.

This symptom might not require a checkup. But if you've gone through menopause, contact your health care team to find out the cause of bleeding from the vagina.

Learn what to expect when it comes to vaginal discharge. And know when changes in discharge might mean you should see a health care provider.

Make an appointment with your doctor if vaginal dryness is causing you discomfort.

Learn about causes of unpleasant or unusual odor from the vagina and when to seek care.

Vomiting blood can be a symptom of a number of serious conditions. Find out what it could mean.

This symptom overview covers the definition and possible causes of excess tearing.

This high-pitched whistling sound made while breathing is often caused by asthma and chronic obstructive pulmonary disease, but there are many other causes.

This is usually harmless, but sometimes it can be a sign of serious conditions, ranging from infection to a precancerous condition.

Yellow tongue: Symptom — Overview covers definition and possible causes of a yellow tongue.