Cystinuria

Stones - cystine; Cystine stones

Cystinuria is a rare condition in which stones made from an amino acid called cysteine form in the kidney, ureter, or bladder. Cystine is formed when two molecules of an amino acid called cysteine are bound together. The condition is passed down through families.

Female urinary tract

The female and male urinary tracts are relatively the same except for the length of the urethra.

Male urinary tract

The male and female urinary tracts are relatively the same except for the length of the urethra.

Cystinuria

Cystinuria is a disorder characterized by cystine stones in the kidney, ureter, and bladder. A genetic abnormality results in abnormal transport of amino acids in the kidney. The high levels of the amino acid cystine in the urine lead to stone formation. While this disease only accounts for 1% to 2% of urinary tract stones in the general population, it is the most common cause among children.

Nephrolithiasis

Kidney stones result when urine becomes too concentrated and substances in the urine crystalize to form stones. Symptoms arise when the stones begin to move down the ureter causing intense pain. Kidney stones may form in the pelvis or calyces of the kidney or in the ureter.

Causes

Symptoms

Exams and Tests

Treatment

Outlook (Prognosis)

Possible Complications

When to Contact a Medical Professional

Prevention