A member asked:

How long after ejaculation does it take for any left over semen to clear the urethra?

A doctor has provided 1 answer
Dr. Harold Mandel answered

Specializes in General Practice

About 5 hrs: One study showed that after 5 hours sperm were no longer detected in post-ejaculatory urine. (https://www.ncbi.nlm.nih.gov/pubmed/19889505) The conclusion as to whether sperm findings greater than 5 hours after ejaculation are improbable needs to be confirmed via further investigations. I wish you well with your health!

Answered 8/9/2019

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