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 there is blood in urine, the symptom is obvious. Instead of its normal pale yellow color, your urine may be pink, red, brownish-red, or tea-colored. This is what doctors call gross hematuria. Sometimes, blood in urine is not visible to the naked eye and the presence of red blood cells can only be detected by the lab. This is what doctors call microscopic hematuria. It's usually only discovered when a urine sample is tested with a dipstick and the results are confirmed with a microscopic examination.