Uroflowmetry is a simple, diagnostic screening procedure used to calculate the flow rate of urine over time. The test is noninvasive (the skin is not pierced), and may be used to assess bladder and sphincter function.

Why is a uroflow test done?

Your doctor may recommend a uroflow test if you have slow urination, a weak urine stream, or difficulty urinating. They may also use it to test your sphincter muscle. The sphincter muscle is a circular muscle that closes tightly around the bladder opening. It helps to prevent urine leakage.

  • benign prostatic hypertrophy, or enlargement of the prostate gland, which can block the urethra completely.
  • bladder cancer.
  • prostate cancer.
  • a urinary blockage.
  • neurogenic bladder dysfunction, or trouble with the bladder due to a nervous system problem such as spinal cord tumor or injury.

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