Chyluria is defined as the passage of chyle through the urinary tract. Chyle is a milky fluid consisting of lymph and dietary fats, and when it enters the urine, it gives it a milky appearance. In most cases, chyluria is due to the presence of fistulas that connect the urinary and lymphatic systems, typically from the renal pelvis to the bladder. It can have various causes, including traumatic injury, iatrogenic factors (such as extensive para-aortic and iliac lymphadenectomy in urologic surgery), or complex dysplasia of the chyliferous and lymphatic vessels in the intestines and retroperitoneum. 


Symptoms of Chyluria 

The primary symptom of chyluria is a change in urine color, which becomes white or milky. However, chyluria may also be associated with other symptoms, including: 

If you experience these symptoms, it is essential to consult a physician for a thorough evaluation. 

Causes of Chyluria 

Chyluria is often caused by an abnormality in the lymphatic or lymphovenous system that allows chyle to enter the urinary system. Possible causes of chyluria include: 

Diagnosis of Chyluria 

The diagnosis of chyluria involves several approaches, including: 

If chyluria is suspected, it is essential to consult a urologist or infectious disease specialist for an accurate diagnosis and assessment of the underlying causes. 

Treatment of Chyluria 

The treatment of chyluria depends on the underlying cause and the severity of symptoms. Treatment options may include: 


Chyluria is a rare but potentially serious condition characterized by the presence of chyle in the urinary tract, resulting in a change in the color of urine. It is essential to consult a physician for an accurate diagnosis and identification of underlying causes. With timely diagnosis and appropriate treatment, chyluria can be managed and treated to improve the patient’s quality of life. 

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