“This is what causes red-looking stool that isn’t actually blood.” Betalain pigments are sensitive to pH, which is why urine color can vary from pink to bright red depending on a person’s ...

The bright red blood is like a truck full of packages ... and might come from higher up in your digestive system. Blood in urine should never be ignored. Pink, red, or cola-colored urine can ...

Hematuria is the presence of red blood cells in an individual's urine and can be categorized in two different ways.

Having red urine may mean that blood is present, such as from a woman's menstrual cycle. Strenuous exercise may also cause red blood cells to show up in the urine. In addition, red urine may be a ...

Bright red blood in your stool, also known as hematochezia, is a sign of bleeding in the lower digestive tract. It is most likely caused by a condition like hemorrhoids or diverticular disease.

Doctors call blood in the urine haematuria (pronounced heem-at-you-ree-ah). You may see the blood in your urine. It usually looks bright red. Rarely, it may look dark brown. Sometimes the blood is ...