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 OK, the …

Feb 4, 2025 · With age, vertical nail ridges may become more numerous or prominent because of changes in cell turnover within the nail. If your fingernails change color or you develop horizontal nail …

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

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. Stool color is …

Sep 12, 2025 · This rare form of breast cancer causes breast skin changes. Learn about the symptoms, causes, diagnosis and treatments, including surgery.

Jul 8, 2025 · A simple blood test done in a doctor's office can help to diagnose Alzheimer's disease. Find out who can have the test, and how accurate results are.

Nov 13, 2025 · A low hemoglobin count on a blood test could be normal for you, or it could indicate that you have a condition that needs medical attention.

This can indicate: The blood has too few healthy red blood cells. This condition is called anemia. That the body does not have enough vitamins or minerals. Recent or long-term blood loss. When the …

Mar 8, 2024 · Hypercalcemia is a condition in which the calcium level in the blood becomes too high. Too much calcium in the blood can weaken bones and create kidney stones. It also can affect the …

Feb 28, 2024 · Checking your blood pressure helps you avoid health problems. Learn more about what your numbers mean.