Urine: Types, Causes & Prevention
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What causes blood in urine? 47 possible conditions

Hematuria is the medical term for blood in your urine. Several different conditions and diseases can cause hematuria. These include infections, kidney disease, cancer, and rare blood disorders. The blood may be visible or in such small quantities that it... Read more

See a list of possible causes in order from the most common to the least.

1

Kidney Stones

Kidney stones are solid masses of crystalized calcium or other substances that originate in the kidneys but can pass through the urinary tract. The greatest risk factor is making less than one liter of urine per day.

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2

Obstructive Uropathy

Obstructive uropathy happens when your urine flow reverses direction due to a blockage in a ureter.

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3

Benign Enlargement of Prostate

Benign enlargement of the prostate is a common condition in which your prostate gland swells beyond normal size.

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4

Urinary Tract Infection

The urinary tract consists of the kidneys, ureters (which connect the kidneys and the bladder), bladder, and urethra. Urinary tract infections (UTIs) can occur in any part of the urinary tract. Most UTIs are caused b...

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5

Urethritis

Urethritis is an infection of the urethra, the tube that carries urine from the bladder and semen out of the body. Symptoms include burning while urinating, abdominal pain, and discharge.

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6

Pyelonephritis

Pyelonephritis is an inflammation of the kidney and upper urinary tract. Symptoms include flushed skin, back pain, fever, and nausea.

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7

Bladder Stones: The Bad, the Ugly, and the Good

Bladder stones are crystals that form when concentrated urine is left in the bladder after urination, often due to dehydration or being unable to empty the bladder totally. Symptoms include painful urination and others.

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8

Bladder Cancer

Bladder cancer occurs in the tissues of the bladder, which is the organ that holds urine. Fatigue, weight loss, painful or frequent urination, and abdominal or back pain are symptoms.

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9

Polycystic Kidney Disease

Polycystic kidney disease (PKD) is an inherited kidney disorder. It causes fluid-filled cysts to form in the kidneys. PKD may impair kidney function and cause kidney failure. According to the University of Chicag...

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10

Prostate Cancer Overview

Learn prostate cancer information, causes, symptoms and treatments.

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11

Urethral Stricture

Usually the urethra is wide enough for urine to flow freely through it. When it narrows, it can restrict urinary flow. This is known as a urethral stricture.

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12

Cystitis

Cystitis is inflammation of the bladder. It's most often caused by a bacterial infection known as a urinary tract infection (UTI). It can become a serious health issue if the infection spreads to the kidney.

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13

Acute Unilateral Obstructive Uropathy

Obstructive uropathy is a blockage that prevents urine from leaving your kidneys. When this condition develops suddenly and only affects one kidney, it’s called acute unilateral obstructive uropathy. The blockag...

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14

Cervical Dysplasia

Cervical dysplasia is a condition in which healthy cells on the cervix undergo some abnormal changes. The cervix is the lower part of the uterus that leads into the vagina. It is the cervix that dilates durin...

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15

Acute Prostatitis

Acute prostatitis is the sudden onset of inflammation in the prostate. The prostate gland is a small, walnut-shaped organ located at the base of the bladder, in front of the rectum. The prostate provides 70 percent o...

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16

ABO Incompatability Reaction

This condition is considered a medical emergency. Urgent care may be required.

An ABO incompatibility reaction can occur if you receive the wrong type of blood during a blood transfusion. It's rare but serious and potentially fatal.

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17

Reactive Arthritis (Reiter's Syndrome)

Reiter's syndrome produces inflammation, swelling, and pain in the joints due to infection elsewhere in the body. Symptoms include mouth ulcers, painful urination, and urethral discharge.

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18

Lupus Nephritis

Lupus nephritis is one of the most serious complications of lupus. It occurs when SLE causes your immune system to attack your kidneys.

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19

Goodpasture syndrome

Goodpasture syndrome is a rare condition that occurs when your immune system attacks the walls of your lungs and the tiny filtering units in your kidneys.

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20

Rhabdomyolysis

Rhabdomyolysis is breakdown of muscle fibers. Muscle breakdown causes the release of myoglobin into the bloodstream. Myoglobin can cause kidney damage. Symptoms include dark urine, muscle weakness, and fatigue. Abou...

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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