Acute kidney failure


Amyotrophic lateral sclerosis

Amyotrophic lateral sclerosis (ALS) — often known as Lou Gehrig's disease — is a degenerative condition causing loss of control of voluntary muscles.


Anaphylaxis is the most serious type of allergic reaction. It often occurs rapidly after exposure to an allergen and may be life-threatening.

Anorexia nervosa

Anterior prolapse (cystocele)




Ataxia describes lack of muscle coordination while performing voluntary movements. A sign of an underlying condition, ataxia can affect any part of your body.

Back pain


Benign prostatic hyperplasia (BPH)

Binge-eating disorder

Bipolar disorder

Bladder stones

Bladder stones are small masses of minerals in your bladder — often forming as a result of an enlarged prostate, nerve damage or infection.

Blood in urine (hematuria)

Bulimia nervosa

Carcinoid tumors

Carcinoid tumors are rare, slow-growing cancerous tumors that most often occur in the gastrointestinal tract or in the lungs.

Castleman disease



Are you worried you might have chlamydia? Find out how this common sexually transmitted infection is diagnosed and treated.

Chronic daily headaches

Chronic kidney disease

Chronic kidney disease, often caused by diabetes or high blood pressure, is the gradual loss of kidney function. Early detection and treatment can help.

Congenital adrenal hyperplasia

Congenital adrenal hyperplasia is a genetic condition affecting the adrenal glands and interfering with normal growth and development in boys and girls.

Cushing syndrome

Cushing syndrome is caused by an excess of the hormone cortisol, originating from your adrenal glands or from corticosteroid medications you're taking for another illness.

Cyclothymia (cyclothymic disorder)



You normally lose about 10 cups (2.4 liters) of water every day — much more during exercise or illness. Learn how to stay hydrated.

Delayed ejaculation



Diabetes insipidus

Diabetes insipidus is a rare condition characterized by intense thirst and the excretion of large amounts of urine.

Diabetic ketoacidosis




Erectile dysfunction

Febrile seizure

Heat exhaustion


Hemolytic uremic syndrome (HUS)

Hemolytic uremic syndrome is an uncommon condition that can cause life-threatening kidney failure, especially for children and older adults.

Henoch-Schonlein purpura

Henoch-Schonlein purpura causes inflammation of small blood vessels (vasculitis) and often a purplish rash. It's most common in children ages 2 to 6.

High blood pressure in children



Horner syndrome





IgA nephropathy (Berger's disease)

IgA nephropathy (Berger's disease) is a kidney disorder caused by abnormal deposits of immunoglobulin A (IgA) inside your kidneys.

Infant jaundice

Infant jaundice, a yellowing of the skin and eyes, is common after birth. Careful monitoring and treatment is important for preventing rare, but serious, complications.

Interstitial cystitis

Frequent urination and pelvic pain may indicate interstitial cystitis, a chronic bladder inflammation. There's no cure, but some treatments offer relief.

Interstitial lung disease

Kidney cancer

Kidney infection

Kidney stones

Listeria infection

Most people exposed to listeria don't become ill. But for those at risk of a listeria infection — a foodborne illness — the consequences can be severe.


Lynch syndrome

Membranous nephropathy

Nephrotic syndrome

Non-Hodgkin's lymphoma


Overactive bladder

Pelvic inflammatory disease (PID)


Postpartum preeclampsia


Prostatitis, inflammation of the prostate gland, can cause significant male pelvic pain and other symptoms.

Retrograde ejaculation

Retrograde ejaculation occurs when semen enters the bladder instead of emerging through the penis during orgasm. Find out about symptoms and treatment.

Rett syndrome

Reye's syndrome


Rickets is a severe and prolonged vitamin D deficiency that leads to softening and weakening of the bones in children.

Scrotal masses

Secondary hypertension

Secondary hypertension is a type of high blood pressure that's caused by another medical condition. Prompt treatment is often necessary to avoid complications.


Sexually transmitted diseases

Sjogren's syndrome

Stress incontinence

Sweating and body odor

Excessive sweating and body odor can be embarrassing. Find out the possible causes and what you can do about this personal problem.

Testicular torsion

Toxic shock syndrome


Type 1 diabetes

Type 2 diabetes

Urinary incontinence

Urine color

Vaginal atrophy

You don't have to accept vaginal problems as part of getting older. Discover treatment options.

Vaginal dryness

Vaginal dryness is a common and uncomfortable condition — but there are effective ways to treat it.


Vesicoureteral reflux

Wegener's granulomatosis

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.

Wilms' tumor

Feb. 15, 2014