Oct 10, 2024 · Stool comes in a range of colors. All shades of brown and even green are considered typical. Only rarely does stool color indicate a possibly serious intestinal condition. …

Aug 5, 2023 · Learn about the blood urea nitrogen (BUN) test to assess kidney function and what possible results could mean.

When the hematocrit value is high, the proportion of red blood cells in the blood is higher than normal. This can indicate:

Mar 12, 2024 · Sexually transmitted diseases are infections spread mainly by contact with genitals or bodily fluids. Also called STDs, STIs or venereal disease, sexually transmitted infections are …

Sep 20, 2025 · Bile reflux happens when bile backs up into the stomach. Bile is a liquid the liver makes to help digest food. Sometimes, this liquid then backs up into the esophagus, the tube …

Jun 3, 2025 · Overview An alanine aminotransferase test, also called an ALT test, is a blood test to check the health of your liver. ALT is a substance found mostly in the liver. If your liver is …

Sep 12, 2025 · Overview Paget's disease of the breast is a rare form of breast cancer that affects the nipple. Paget's disease of the breast often causes scaly or crusty skin on the nipple. The …

Oct 24, 2023 · Bilirubin in your urine might indicate liver damage or disease. Evidence of infection. Either nitrites or leukocyte esterase — a product of white blood cells — in your urine might …

Mar 20, 2025 · Your kidneys filter waste products from your blood while keeping what your body needs — including proteins. However, some diseases and conditions allow proteins to pass …

Apr 30, 2025 · PSA is mostly found in semen, which also is produced in the prostate. Small amounts of PSA ordinarily circulate in the blood. The PSA test can detect high levels of PSA …