Why Does Semen Remain in the Urethra After Ejaculation? - Urology

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After ejaculation, why is there still semen in the corpus cavernosum?


After ejaculation, why is there still semen in the urethra that I have to squeeze out with my hand and wipe away with tissue? Is this normal? Thank you.

Sidéwàng, 20~29 year old female. Ask Date: 2016/10/18

Dr. Sun Hongshun reply Urology


Hello: This is a normal phenomenon.
If you still have questions, you can consult the urology outpatient clinic.

Reply Date: 2016/10/18

More Info


After ejaculation, it is common for some semen to remain in the urethra. This phenomenon can be attributed to several anatomical and physiological factors.

Firstly, the urethra is a tube that runs through the penis and serves as a passage for both urine and semen. During ejaculation, semen is expelled from the seminal vesicles and prostate gland, and it travels through the urethra to exit the body. However, the urethra can retain some residual semen due to its structure. The urethra has a certain volume capacity, and it is not uncommon for some fluid to remain in it after the main ejaculate has been expelled.

Secondly, the process of ejaculation involves a series of muscular contractions that help propel semen out of the body. These contractions are powerful but may not completely clear the urethra of all semen. Additionally, the sphincter muscles at the base of the bladder close during ejaculation to prevent urine from mixing with semen, which can also contribute to the retention of some fluid in the urethra.

It is also worth noting that the sensation of needing to expel remaining semen is quite normal. Many men may feel the urge to squeeze or push to remove any residual fluid, and this is a natural response. Using a tissue to clean up afterward is also a common practice for hygiene purposes.

From a medical perspective, there is generally no cause for concern if you notice some semen remaining in the urethra after ejaculation. It is a normal occurrence and does not indicate any underlying health issues. However, if you experience any unusual symptoms, such as pain, discomfort, or changes in urination, it would be advisable to consult a healthcare professional.

In summary, the presence of semen in the urethra after ejaculation is a normal physiological occurrence due to the anatomy of the urethra and the mechanics of ejaculation. If you find it bothersome, gently squeezing to expel the remaining fluid is a common practice, and using tissue for cleanliness is perfectly acceptable. If you have further concerns or experience any discomfort, seeking medical advice is always a good option.

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