Symptoms

Abdominal pain: Symptom — Overview covers definition, causes of abdominal pain, including lower abdominal pain.

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

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

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 doctor.

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.

Finding blood in your semen can be alarming, but the cause is usually benign. 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 can result from a harmless condition. Or it could be cancer. Understand breast lump causes and when you need to see a doctor.

Overview covers definition, 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.

Cold hands may not be cause for concern. But persistent cold hands may be due to a blood vessel or nerve problem. Learn about the possible causes.

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 have bouts of dizziness? Learn about the many possible 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 abnormal amounts of liver enzymes into the bloodstream. The symptom is often mild and temporary.

Learn more about a condition in which white blood cell counts are elevated beyond normal limits.

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.

Fatigue can result from many conditions — such as fibromyalgia or sleep apnea — or lifestyle factors — such as alcohol use or medication side effects.

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

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

Frequent urination: Symptom — Overview covers definition, possible causes of the need to urinate more than usual.

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

Learn more about the causes and symptoms of groin pain, including when to see a doctor and how you can treat it at home.

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

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

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 if you have high potassium? Learn about the role potassium plays in your body and the possible causes of this blood test result.

High red blood cell count: Symptom —Overview covers possible causes of excessive oxygen-transporting cells.

High uric acid level: Symptom — Overview covers definition, possible causes of this symptom.

High white blood cell count: Symptom — Overview covers possible causes of increased disease-fighting cells.

Hip pain: Symptom — Overview covers definition, possible causes of hip joint pain.

Hypoxemia: Symptom — Overview covers definition, possible causes, treatment of low blood oxygen.

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

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

Kidney pain: Symptom — Overview covers definition and causes of kidney pain.

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

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

A common sign of fluid retention, leg swelling might be from standing or sitting too long. Or it might indicate a more serious condition.

Learn about the definition and possible causes of loss of smell (anosmia).

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.

Low white blood cell count: Symptom — Overview covers possible causes of decreased disease-fighting cells.

A temporary increase in certain white blood cells, called lymphocytes, is normal 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 the possible causes of 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.

Night leg cramps: Symptom — Overview covers definition, possible causes of this painful symptom.

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

Fluid leaking from the nipples isn't usually 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, neurologic disorders and chronic diseases are some of the possible causes of this common symptom.

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

Learn about possible causes for pain, burning or other discomfort during urination and when you might need to see a doctor.

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

Pelvic pain can be dull or sharp, constant or intermittent. Learn about possible causes and when to see a doctor.

Petechiae: Symptom — Overview covers definition, possible causes of this skin symptom.

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.

Red eye 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 your doctor.

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.

Unusual urine odor might be an indicator of an underlying disease or condition.

Vaginal bleeding that's unrelated to your period might signal a problem. Learn about possible causes and when you should see a doctor.

Vaginal bleeding after sex might not require a doctor's visit, but if you're postmenopausal, contact your doctor to find out the cause of vaginal bleeding.

Learn what's normal when it comes to vaginal discharge, and understand when changes in discharge might mean you should see a doctor.

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.

Watery eyes: Symptom — Overview covers definition, possible causes of excess tearing.

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

White tongue: Symptom — Learn about the definition and possible causes of this usually harmless symptom.

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