A urine flow test calculates the speed of urine flow over time. It may be used to check how the bladder and sphincter are working. The bladder is part of the urinary tract. It then contracts and flattens to empty urine through the tube that carries urine from the bladder out of the body urethra.
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A hesitating start when urinating, a need to strain, a weak and trickling stream of urine, and dribbling at the end of urination are common symptoms of a partially obstructed urethra. In men, these symptoms are caused most commonly by an enlarged prostate that compresses the urethra and less often by a narrowing stricture of the urethra. Similar symptoms in a boy may mean that he was born with an abnormally narrow urethra or has a urethra with an abnormally narrow external opening. The opening may also be abnormally narrow in women. If the prostate is enlarged , a blood test to measure the level of prostate-specific antigen PSA may be done. Sometimes ultrasonography of the prostate is also done.
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Scientists at Queen Mary, University of London have discovered that the characteristic shape of a man's urine stream could be used to help diagnose urinary problems. The research, published Oct. Co-author Dr Martin Knight from Queen Mary's School of Engineering and Materials Science explained: "The characteristic shape is due to the surface tension in the urine and the elliptical shape of the urethra. There was an excellent correlation between the shape of the urine stream and the urine flow rate.
Problems urinating are more common — and can start earlier — than you think. Many times, your prostate is the culprit. While the rest of your body stops growing after puberty, your prostate kicks things back up again around the age of It goes off every hour or two, and sometimes even more at night. Frequent urination is one of the most common symptoms of an enlarged prostate.