Jul 3, 2025 · Doppler ultrasound is a noninvasive test that can be used to measure the blood flow through your blood vessels. It works by bouncing high-frequency sound waves off red blood cells that …

Jan 15, 2025 · Carotid (kuh-ROT-id) ultrasound is a procedure that uses sound waves to look at blood flow through the carotid arteries. The carotid arteries are a pair of blood vessels on each side of the …

Oct 21, 2025 · Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.

Apr 22, 2025 · Learn about the expertise and services at Mayo Clinic vascular centers for adults and children with conditions of the blood vessel and lymphatic systems.

Dec 5, 2024 · Sleep is key to good health. Not getting enough sleep affects your mind and body. People who have a hard time getting a good night's sleep find the help they need at Mayo Clinic's Center for …

Jul 29, 2025 · These feelings of anxiety and panic interfere with daily activities, are difficult to control, are out of proportion to the actual danger and can last a long time. You may avoid places or situations to …

Feb 1, 2025 · Description Barium sulfate is used to help diagnose or find problems in the esophagus, stomach, and bowels. It is a radiographic contrast agent. Contrast agents are used to create a clear …

Jan 29, 2019 · Women are diagnosed with depression more often than men are. Discover what factors may contribute to that increased risk.

Oct 24, 2025 · Cirrhosis is advanced scarring of the liver caused by many diseases and conditions, including long-term alcohol use, obesity and fatty liver, or liver infections, among others. The …

Jul 3, 2025 · White stool isn't typical. If you have white stool, you should see a medical professional right away. A lack of bile causes white or clay-like stool. That may mean a serious underlying problem. …