Swollen veins can signal various underlying health conditions ranging from minor circulatory issues to serious medical concerns. Recognizing the primary causes helps determine when to seek ...

Over time, what may have started out as an “itsy bitsy” spider vein can become a real concern. We call them “spider veins” because of their web-like appearance, but really they’re broken blood vessels ...

Whenever you see blood outside your body, it looks red. Why? Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that’s crucial for carrying oxygen ...

In a first-of-its-kind operation in the United States, a team of doctors created a bioengineered blood vessel and implanted it into the arm of a patient with end-stage kidney disease. The procedure, ...

The G-Knot relies on finger vein-scanning technology. Its creators say it's safer, and easier to use, than established ...

The Wyze Palm Lock is a smart home lock that uses biometric technology to identify users based on the unique pattern of veins beneath the surface of the palm. SecurityInfoWatch is the security ...

Portal vein thrombosis (PVT) is a blood clot of the portal vein, also known as the hepatic portal vein. A PVT blocks the blood flow from the intestines to the liver. Although it is treatable, PVT can ...

Microrobots may become an effective tool in breaking down the dangerous blood vessel blockages that cause strokes. But these ...

Surgeons in the United States perform nearly 600,000 coronary artery stent procedures and bypass surgeries every year.

Certain blood vessels in the brainstem constrict when blood vessels elsewhere in the body would dilate. And that contrary behavior is what keeps us breathing, according to a new article. Certain blood ...