What does it mean if my semen volume is much lower?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Lower semen volume is often caused by medications like finasteride, hormonal changes, or ejaculation issues such as retrograde ejaculation. If you notice a persistent decrease in semen volume, it's important to consult a doctor to identify the underlying cause and rule out fertility or health concerns.

Because low semen volume can stem from many possible causes—ranging from harmless medication side effects to treatable hormonal or reproductive conditions—getting clarity early matters. A quick, free, and confidential symptom check can help you understand what may be behind the change and guide your next steps before your doctor's visit.

Reviewed for medical accuracy: 07/15/2026

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Explanation

A decrease in semen volume can be concerning, and there are different reasons why it might happen. One possible reason is the use of certain medications, like finasteride, which is sometimes used by men experiencing infertility. This medication can affect semen production.

Another reason for lower semen volume could be problems with ejaculation. Some studies suggest that certain treatments can help improve ejaculation issues. If you notice a change in your semen volume, it is important to discuss this with a healthcare provider. You can start by using a free symptom checker to help identify potential causes and determine if you need medical attention. Remember, understanding the underlying cause is key to finding the right solution.

(References)

Samplaski MK, Lo K, Grober E, & Jarvi K. (2013). Finasteride use in the male infertility population. Fertility and sterility, 24012200.
Goktas S, Kibar Y, Kilic S, Topac H, Coban H, & Seckin B. (2006). Recovery of abnormal ejaculation by intermittent .... The Journal of urology, 16407016.

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