The problem—and life-threatening part—arises when blood clots abnormally within vessels, or break loose and travel to other parts of the body.

A retrospective study shows sleep apnea can increase the risk for retinal vein occlusion in both men and women and is associated with worse outcomes in patients who already have the condition.

Many cancer survivors struggle with muscle weakness, which can be so profound that they may have difficulties walking up a couple of flights of stairs or going shopping for groceries on their own.

We consistently observed that the blood vessels in the muscles became fewer and leakier even before the muscle weakness set in.

To help reduce high blood pressure naturally, consider adding more fruits and fish to your diet, getting enough aerobic exercise, and practicing mindfulness.

Blood vessel structures found preserved in a famous T rex fossil are helping scientists understand how dinosaurs healed from injuries.

Scientists discovered that nanosilicates can help the body grow new blood vessels, which is essential for healing wounds and damaged tissues. This finding could lead to better treatments for injuries ...

Even with built-in blood vessels, these lung organoids currently resemble fetal-stage human lungs. To make these mini-lungs more useful for medical research, the team is planning to introduce ...

By creating artificial aging in mice, researchers at Lund University in Sweden have been able to track the formation of aneurysms in the walls of blood vessels.

UCLA researchers have successfully grown miniature lungs from stem cells—complete with their own functioning blood vessel networks.

Doctors Detected a Mysterious Antibody in a French Woman’s Body. It Turned Out to Be a Brand New Blood Type Called “Gwada negative,” it marks the discovery of the 48th known blood group ...