The ductus arteriosus is a normal fetal artery connecting the main body artery (aorta) and the main lung artery (pulmonary artery). The ductus allows blood to detour away from the lungs before birth. Every baby is born with a ductus arteriosus. After birth, the opening is no longer needed and it usually narrows and closes within the first few days.
Welcome to our Guide for men who have noticed blood in their urine. The medical term for blood in the urine is hematuria. Urine that contains blood can appear pink, red, maroon, or even have a dark smoky color that looks like cola. You may or may not see blood clots, which can look like coffee grounds. Rarely, red urine may be caused by certain foods or medicine.
If you notice bright red blood in your urine, or if your urine has turned red or brown because it has blood in it, see your GP. Sometimes, urine may contain only a small amount of blood invisible to the naked eye and is only apparent when a urine test is carried out for something else. This still needs to be investigated by your doctor, as healthy urine should not contain any detectable amounts of blood.