Osteopathic medicine: What kind of doctor is a D.O.? - Mayo Clinic
Dec 12, 2025 · You know what M.D. means, but what does D.O. mean? What's different and what's alike between these two kinds of health care providers?
Blood pressure chart: What your reading means - Mayo Clinic
Dec 24, 2025 · Here's a look at the four blood pressure categories and what they mean for you. If your top and bottom numbers fall into two different categories, your correct blood pressure …
BRCA gene test for breast and ovarian cancer risk - Mayo Clinic
Dec 23, 2025 · Overview The BRCA gene test looks for DNA changes that increase the risk of breast cancer and ovarian cancer. It uses a sample of blood or saliva to look for the changes. …
Atrial tachycardia - Symptoms and causes - Mayo Clinic
Symptoms The main symptom of atrial tachycardia is a very fast heartbeat. Typically during atrial tachycardia, the heart beats 150 to 200 times a minute. The fast heartbeat may come and go …
Fever - Symptoms and causes - Mayo Clinic
Dec 20, 2025 · Follow public health guidelines for wearing masks and social distancing. Wash your hands often and teach your children to do the same, especially before eating, after using …
Ejection fraction: An important heart test - Mayo Clinic
Jan 29, 2025 · Ejection fraction is a measurement of the percentage of blood leaving the heart each time it squeezes. When the heart squeezes, it's called a contraction. Ejection fraction is …
Stool color: When to worry - Mayo Clinic
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. …
Organic foods: Are they safer? More nutritious? - Mayo Clinic
Feb 28, 2025 · Understand the differences between organic foods and traditionally grown foods when it comes to nutrition, safety and price.
Macrocytosis: What causes it? - Mayo Clinic
Mar 4, 2025 · The condition of red blood cells that are larger than usual is called macrocytosis. Macrocytosis most often has no symptoms. It's found on routine blood tests. Macrocytosis isn't …
Dense breast tissue: What it means to have dense breasts
Mar 9, 2024 · Find out what it means if your mammogram report says you have dense breast tissue. Learn about additional breast cancer screening tests to consider.