An erection is the result of increased blood flow to the penis. But you may be wondering exactly how that works, and whether there’s a specific amount of blood that your penis needs to achieve an ...

In 2011, a woman from the French overseas region of Guadeloupe underwent routine tests before a surgery. Strikingly, doctors could not identify her blood group, which was so unique that they did not ...

Blood clots are among the most feared medical emergencies, and for good reason. They can lead to heart attacks, strokes and death. But not all clots are dangerous. In fact, clotting is a natural and ...

MPNs involve overproduction of blood cells, while MDS results in poorly formed cells, affecting blood cell function and counts. Diagnosis requires blood tests, bone marrow biopsy, and genetic testing ...

Semen is a fluid that is composed of sperm as well as fluids from the prostate and other glands. The resulting seminal fluid or ejaculate passes through several ducts on its way to the urethra. First, ...

Macy is a writer on the AI Team. She covers how AI is changing daily life and how to make the most of it. This includes writing about consumer AI products and their real-world impact, from ...

In July, the US Food and Drug Administration (FDA) approved a new blood-based test to screen for colorectal cancer (CRC). The FDA's approval of Shield (Guardant Health) marks a notable achievement, as ...

Occult blood is when you can’t see blood in your urine with your eye and it’s only visible under a microscope. You may need antibiotics or different treatments depending on the infection or other ...

Bulimia nervosa is an eating disorder that typically involves cycles of bingeing and purging. When blood comes up during vomiting, it may indicate throat damage or other complications. Bulimia can ...