Urobilin is the chemical primarily responsible for the yellow color of urine. It is a linear tetrapyrrole compound that, along with the related colorless compound urobilinogen, are degradation products of the cyclic tetrapyrrole heme.

What is a urobilinogen in urine test? A urobilinogen in urine test measures the amount of urobilinogen in your urine (pee). Urobilinogen comes from bilirubin. Your body makes bilirubin during the normal process of breaking down old red blood cells. Your liver uses the bilirubin to make bile, a fluid that helps you digest food in your intestines.

Feb 5, 2025 · A small amount of urobilinogen is excreted in the urine in the form of urobilin. Urobilinogen is colorless, while urobilin gives urine its yellow color. Excess urobilinogen in urine may indicate liver diseases, such as viral hepatitis , cirrhosis , or liver damage.

Jan 27, 2025 · What Does Urobilinogen in Urine Indicate? What is urobilinogen? Urobilinogen in urine can be an early sign of liver damage, even before the initiation of symptoms. Urobilinogen is produced from the metabolism of bilirubin that results from hemolysis or …

Dec 8, 2024 · In routine urine tests, measuring urobilinogen levels helps identify potential liver, gallbladder, or blood issues. Abnormal levels can be an early indicator of conditions like liver disease, bile duct blockages, or excessive red blood cell breakdown.

Mar 22, 2023 · Sometimes it is excreted in the urine and later oxidized to urobilin. Increased and decreased levels can be a sign of liver problems. Testing urobilinogen in the urine can reveal a lot about the underlying health of a person.

Dec 15, 2022 · Urobilinogen is a byproduct of bilirubin that is eventually eliminated through the stool and urine. Although urobilinogen is normally found in the urine, higher or lower levels may be a sign of a liver problem. Read on to find out what urobilinogen is, how it can be tested, and what its levels may reveal about your health. What is Urobilinogen?

Jul 31, 2024 · Low levels of urobilinogen in your urine may be a sign of liver, gallbladder, or bile duct disease. Urobilinogen is a type of pigment that the colon produces when it breaks down old red blood cells. Your liver takes urobilinogen to make bile, an …

Urobilin and its reduced form urobilinogen are formed by bacterial action on bile pigments in the intestine. The excretion of faecal urobilinogen in health is 50-500 μmol (30-300 mg) per day. It is increased in patients with a haemolytic anaemia.

Jan 12, 2024 · Good bacteria in your intestines break down some of the bilirubin in your bile into urobilinogen, which becomes urobilin. Some of this substance comes out in poop, some goes back to your liver, and a bit of it leaves your body through urine. That’s why urine is yellow.