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how many sperms are left in the urethra after ejaculation

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A 24-year-old male asked:
Dr. George Klauber
Specializes in Pediatric Urology
Killed by urine: Sperm bathed in semen can live in urethra for many hours. However doubt that you lasted 20 hours without urinating. Thus residual semen containing spe ... Read More
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A 24-year-old male asked:
Dr. George Klauber
Specializes in Pediatric Urology
Till first urination: Sperm can not survive in the urethra beyond that.
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A 38-year-old male asked:
Dr. M. Hytham Beck
43 years experience General Surgery
It should: yes it should,usually urination will clear the urethra.
A 33-year-old female asked:
Dr. David Sneid
41 years experience Endocrinology
Yes: Yes to both questions, but there are no guarantees. Why are you having unprotected sex and what are you doing to protect yourself from std's?
A 16-year-old male asked:
Dr. James Lin
A Verified Doctor answered
A US doctor answered Learn more
Here are some...: After a flush-out by urination, the urethra should become sperm-free although no practical study has been done specifically to address your Q. How soo ... Read More
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A 22-year-old female asked:
Dr. Yash Khanna
57 years experience Family Medicine
No it is not true: No it is not true, urine can not wash away the sperms from previous ejaculation.
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A 23-year-old female asked:
Dr. Robert Kwok
33 years experience Pediatrics
Never can tell: Sometimes there will be sperm before an ejaculation. There are likely always sperm after an ejaculation. The rule is, fertile couples who have sex wil ... Read More
A 23-year-old female asked:
Dr. Fletcher Derrick
63 years experience Urology
Possible--yes: Research varies from none to some and even many sperm in the pre ejaculate fluid. If you really want to be safe use a condom prior to penetration or ... Read More
A 23-year-old female asked:
Dr. Jeff Livingston
22 years experience Obstetrics and Gynecology
About 4 million: Preejaculatory fluid has about 4 million individual sperm. Ejaculation has about 400 million. It only takes one. I am not sure what you mean by sperm ... Read More

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