Health A-Z Medical Reference

Symptoms, causes, and treatment of paroxysmal nocturnal hemoglobinuria, a rare blood disease.

Find out what you need to know about 24-hour urine protein tests and discover what it’s for and how it may affect health.

Details about this rare inherited disorder.

WebMD looks at the causes, symptoms, and treatment of Cushing's syndrome, a condition in which your body produces too much of the hormone cortisol.

The causes, symptoms, and treatment of acromegaly, a rare disease that causes your hands, feet, face, and other parts of your body to swell and grow too much.

Ebola is a rare but deadly virus that attacks the immune system and organs. Learn more about symptoms, treatment options, and how to prevent it.

WebMD explains aplastic anemia, a serious but treatable blood condition.

Nearly 1 in 10 Americans has hearing problems, but only half have had their hearing checked. WebMD explains why it's important to treat hearing loss.

Do you find yourself shivering when no one else is? WebMD explains possible causes for the condition.

Factor X is a protein that helps your blood clot. Learn about factor X deficiency, what causes it, what to expect, and more.

Your immune system can be weakened by disease, medications or genetics. Learn more about these disorders.

WebMD explains self-treatment strategies for tinnitus.

WebMD describes the causes, diagnosis, symptoms, and treatment of glomerulosclerosis, the scarring of blood vessels in the kidneys that can lead to kidney failure if untreated.

If your doctor tells you that you have porphyria, it means you have one of a group of disorders that can cause nerve or skin problems. Find out what can trigger the symptoms and how you can get treated.

WebMD explains how to find a clinical trial and the questions you may want to ask before agreeing to participate.

WebMD explains what to expect after an organ transplant, including tips for managing medication, monitoring your progress during recovery at home, and guidelines for diet and exercise.

Learn about different types of hearing loss and the solutions and treatments that are best suited for each type.

Get tips for preventing noise-induced hearing loss and slowing the progression of age-related hearing loss.

WebMD explains what to expect during a fine needle aspiration – a type of biopsy that can help diagnose or rule out cancer.

WebMD explains the causes, symptoms, and treatment of urethritis, an inflammation of the urethra that is commonly due to infection by bacteria.

WebMD explains the symptoms and treatment of brucellosis, a bacterial infection that can be spread from animals to humans.

WebMD discusses the symptoms, causes, and treatment of neutropenia, an immune system condition that may lead to infections.

WebMD explains possible causes of protein in urine (proteinuria) as well as symptoms and treatment.

Learn the causes and treatment of foot drop -- a weakness or paralysis of muscles that prevents people from lifting the front part of the foot.

Manuka honey from New Zealand is touted as having antibacterial properties. We discuss the possible medicinal uses of manuka honey.

WebMD provides an overview of amputation, including reasons why a limb may need to be amputated and recovery from surgery.

WebMD explains the causes, symptoms, and treatment of paragonimiasis, an infection with parasitic worms.

Potassium affects your body in ways you might not know about. Learn why the right amount of potassium is essential for muscles, the brain and beyond..

After an amputation, many choose to use a prosthetic arm, hand, leg, or foot. Learn more from WebMD about these devices and how to use them.

Learn more from WebMD about connective tissue disease, including symptoms and causes of various forms.

WebMD explains what an anal abscess is, what causes it, how to treat it, and more.

A thyroglossal duct cyst is a growth that occurs in the womb. Learn about the causes, symptoms, and treatment options for this condition today.

When EBV comes back, the virus reactivates in your body. Find out about the symptoms and what you can do to treat them.

Find out more about the ear infection, bullous myringitis: what it is, what causes it, and how to keep from getting it again.

Otomycosis is when your ear canal has a fungal infection. Learn about the causes, symptoms, and treatment options for this condition.

Learn what exostosis is, what causes it, how it can be treated, and more.

Learn what oxidative stress is, including positives and negatives, how it affects your health, and more.

Learn more about a code blue, when it might be called, and other codes used in emergencies.

Learn about temporal artery thermometers including what they are, when to use them, step-by-step tips for using them, and understanding thermometer readings.

WebMD helps you ask the right questions about volunteer work.

WebMD explains how tax exemptions for charitable giving work, giving and itemizing contributions, and more.

WebMD discusses the uses of peppermint oil as well as the benefits and side effects.

WebMD explains when, why, and how the FDA recalls a medication and what to do if a drug you are taking is a target.

WebMD explains snapping hip syndrome, including its causes, symptoms, treatments, and exercises that may help.

Learn more from WebMD about simple kidney cysts, including symptoms and treatments.

Myositis causes muscle inflammation, leading to weakness, pain, and swelling. Learn about its symptoms, causes, treatments, and long-term outlook for better management.

WebMD describes what happens during an ultrasound, what types of ultrasounds are used, and more.

What’s the difference between a bacterial and viral infection? WebMD explains, and provides information on the causes and treatments for both.

WebMD explains the causes and treatment of benign tumors.

WebMD explains autoimmune diseases like asthma and rheumatoid arthritis, including causes and treatments.