Acanthosis nigricans: Treating underlying disorders may improve skin condition
Addison's disease occurs when your adrenal glands produce insufficient amounts of certain important hormones. Treatment may include taking corticosteroids.
Alcohol can severely damage your liver — even moderate drinkers aren't immune. Learn more about this serious liver disease.
Angina is a common type of chest pain caused by coronary artery disease. Unstable angina can be a warning sign of a heart attack.
Find out what's behind this life-threatening eating disorder and how to treat it.
Ascariasis is a common type of roundworm infection found worldwide. It's spread by poor hygiene and improper sanitation. Infections are effectively treated with medication.
Aspergillosis is a group of illnesses caused by a common mold. It mainly affects people with a weakened immune system, another lung disease or asthma.
Bile reflux — the backwash of bile from the small intestine into the stomach and esophagus — can cause ongoing inflammation and lead to serious complications.
Binge-eating disorder can make your life miserable and damage your health. Explore treatment strategies to overcome this common eating disorder.
Blind loop syndrome occurs when a portion of bowel is bypassed. The condition is most often a complication of abdominal surgery.
Bone cancer is an uncommon type of cancer that begins in a bone. It can affect both adults and children.
C. difficile can be a life-threatening infection. It typically develops when antibiotics destroy other bacteria in your intestines, allowing C. difficile to flourish.
Learn about cancer, what it looks like and what causes it.
Carcinoid tumors are rare, slow-growing cancerous tumors that most often occur in the gastrointestinal tract or in the lungs.
Castleman disease is a rare illness that affects your lymph nodes and other immune-cell structures of your body.
Celiac disease is an immune reaction to gluten, a protein found in certain foods. As a result, the body is unable to absorb some important nutrients.
Chronic lymphocytic leukemia is a cancer of the blood and bone marrow. Unlike other cancers, this form of leukemia doesn't always initially require treatment.
Chronic myelogenous leukemia (CML) is a rare type of blood cancer. New treatments may be improving the prognosis for many people with CML.
Churg-Strauss syndrome is a rare disorder marked by blood vessel inflammation that affects organs throughout the body. Asthma is the most common sign.
Alcohol abuse and hepatitis C infection are the leading causes of cirrhosis — a life-threatening condition that leads to irreversible liver scarring.
Colon cancer and rectal cancer combined are the second-leading cause of cancer-related deaths in the United States. Regular screening tests can help reduce your risk.
Congenital adrenal hyperplasia is a genetic condition affecting the adrenal glands and interfering with normal growth and development in boys and girls.
Crohn's disease is a form of inflammatory bowel disease (IBD) — a serious inflammation of the digestive tract that can cause abdominal pain and diarrhea.
Cryptosporidium infection may cause diarrhea in healthy people, but for people with HIV/AIDS and weakened immune systems, the illness can cause serious complications.
Cyclospora infection is an uncommon foodborne intestinal infection that causes diarrhea. Outbreaks have been linked to contaminated water and produce.
Take control of your mood and health. Explore the many depression treatment options and learn coping skills.
Diabetes affects how your body uses blood sugar. Too much blood sugar over long periods can cause serious health problems, but treatments are available.
Diabetes insipidus is a rare condition characterized by intense thirst and the excretion of large amounts of urine.
Diabetes can damage nerves throughout your body — a condition known as diabetic neuropathy. Nerve damage can cause pain, disability and other serious complications.
Drug addiction is the compulsive dependence on a legal or illegal drug. Treatment and a strong support system may help break an addiction.
Difficulty swallowing can be painful and may indicate a serious medical problem.
Reduce your risk of esophageal cancer by eating more fruits and vegetables.
Fibromuscular dysplasia is a rare, but treatable, condition in which the arteries to your kidneys, brain or abdomen narrow, reducing blood flow to your organs.
Gallbladder cancer is an uncommon cancer that begins in your gallbladder.
Giant cell arteritis causes inflammation in your arteries, particularly those in your head. Early treatment often relieves symptoms and prevents vision loss, a serious complication.
Giardia infection is a common waterborne illness. Learn the symptoms and reduce your risk.
Hairy cell leukemia is a rare blood cancer that has no cure. However, treatments can keep hairy cell leukemia at bay for years.
The fungus that causes the lung disease histoplasmosis lurks in soil, chicken coops and caves. Find out if you're at risk.
More than 39 million people are living with HIV — the virus that causes AIDS. Millions more are likely to become infected in the next decade.
Hodgkin's lymphoma (Hodgkin's disease) is cancer of the lymphatic system. Many early symptoms of this cancer resemble those of the flu.
Hyperthyroidism occurs when your thyroid gland produces too much of the hormone thyroxine — speeding up your metabolism and sometimes leading to serious complications.
In hypopituitarism, your pituitary gland produces too little — or none — of one or more hormones. Disruption of any number of routine body functions can result.
Intestinal ischemia occurs when the blood supply to your digestive system is reduced. Abdominal pain is a common symptom. Several treatment options are available.
When kidney cancer is diagnosed and treated early, the chances for recovery are better.
Leukemia is a cancer in which abnormal white blood cells proliferate. Although it's often perceived as a children's disease, leukemia also occurs in adults.
The risk of liver cancer may be reduced by protecting yourself from serious liver diseases such as cirrhosis and hepatitis B and C.
Smoking increases your risk of lung cancer. Quit now and reduce your risk.
Mesothelioma is a type of cancer closely linked to asbestos exposure. Find out the signs and symptoms of malignant mesothelioma and how to protect yourself.
Multiple myeloma is cancer of your bone marrow plasma cells. The disease can make you prone to infections and damage your bones and kidneys.
Neuroblastoma most commonly affects children age 5 and younger. It's the most common form of cancer in babies.
Nonalcoholic fatty liver disease is associated with obesity and diabetes. Lifestyle changes may prevent it from becoming serious.
Non-Hodgkin's lymphoma is cancer originating in the lymphatic system. It's caused by abnormal white blood cells, and often the only sign is swollen lymph nodes.
Noroviruses cause an intestinal flu-like illness that typically resolves within days. Norovirus infection is highly contagious, especially in closed settings like hospitals and cruise ships.
Pancreatic cancer is often fatal. Find out which new treatments offer hope.
The pain of pancreatitis, an inflammation of the pancreas, can last for days, or in chronic cases, for years. Pancreatitis can lead to serious complications.
Peptic ulcers are painful sores that commonly affect the lining of your stomach and upper small intestine. The most frequent cause is a treatable infection.
Pituitary tumors are abnormal growths in the pituitary gland in the brain. Most are noncancerous (benign). Some may cause overproduction of hormones and associated problems.
Polymyalgia rheumatica is an inflammatory disorder that causes pain and stiffness in the neck, shoulders, upper arms, hips and thighs.
Prescription drug abuse is a growing problem, especially in teens. Tips on prevention and recognizing symptoms.
Primary sclerosing cholangitis causes inflammation and scarring within the bile ducts of your liver, eventually affecting your liver's ability to do its job properly.
Pulmonary fibrosis results from scar tissue that forms in your lungs. This affects your ability to breathe and obtain enough oxygen.
Comprehensive overview covers symptoms, treatment of this uncommon digestive condition in infants.
Rheumatoid arthritis causes joint pain and swelling. Find out how it's treated and how to cope.
Seasonal affective disorder (SAD) is a type of depression that generally occurs in fall or winter. Light therapy and other treatments can help.
Sheehan's syndrome is a rare pituitary gland disorder that occurs in women usually as a result of severe blood loss during childbirth.
Reduce your risk of stomach cancer by eating more fruits and vegetables.
Takayasu's arteritis is an uncommon form of vasculitis that affects the large arteries.
Tapeworms most commonly enter your body through contaminated food or water. Symptoms aren't always present, but the prognosis is good with prompt diagnosis and treatment.
All teens feel down from time to time. But if negative feelings persist or start to interfere with daily life, it might be depression.
The most common throat cancers are linked to smoking and excessive alcohol use.
Most thyroid nodules — lumps in the thyroid gland — cause no problems. But nodules that affect swallowing, produce excess thyroid hormone or are malignant require treatment.
Toxic hepatitis is liver damage that occurs when your liver isn't able to break down certain toxins — including common pain relievers such as Tylenol.
Tuberculosis (TB) is making an alarming comeback. You're especially at risk if you have a weakened immune system.
Type 1 diabetes destroys your body's ability to produce insulin. Learn how you can live an active, healthy life with type 1 diabetes.
Type 1 diabetes is a lifelong — sometimes frightening — condition, but it doesn't need to slow your child down. Learn more about managing type 1 diabetes.
Although rare in industrialized nations, typhoid fever is a serious threat in many parts of the world. Learn how to stay safe when you travel.
Ulcerative colitis is a form of inflammatory bowel disease (IBD) — a serious inflammation of the digestive tract that can cause abdominal pain and diarrhea.
Valley fever — This common fungal infection in America's desert regions causes few, if any, problems for most people, but for some it can be life-threatening.
Vasculitis is an inflammation of the blood vessels. It can affect people of any age. Treatment depends on the type of vasculitis.
Lacking certain vitamins can lead to vitamin deficiency anemia. Find out which vitamins are linked to this condition.
Wegener's granulomatosis is an uncommon disease that causes blood vessel inflammation that can damage lungs, kidneys and other organs. Untreated, it can be fatal.
Whipple's disease is a rare bacterial infection that affects primarily the gastrointestinal system, and can be treated successfully with antibiotics.
In Zollinger-Ellison syndrome, tumors in the pancreas or duodenum secrete a hormone called gastrin that leads to excessive stomach acid and ulcers.
Aug. 20, 2011
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