How is Clomid (clomiphene citrate) used to treat oligospermia (low sperm count)?

Medical Advisory BoardAll articles are reviewed for accuracy by our Medical Advisory Board
Educational purpose only • Exercise caution as content is pending human review
Article Review Status
Submitted
Under Review
Approved

Last updated: April 24, 2025View editorial policy

Personalize

Help us tailor your experience

Which best describes you? Your choice helps us use language that's most understandable for you.

From the Guidelines

Clomid (clomiphene citrate) is sometimes prescribed off-label for men with low sperm count, typically at doses of 25-50mg daily or every other day for 3-6 months, as it may improve sperm parameters by increasing follicle-stimulating hormone (FSH) and luteinizing hormone (LH) production, ultimately enhancing testosterone levels 1.

Key Considerations

  • Before starting Clomid, men should undergo a complete fertility evaluation, including hormone testing, to determine their suitability for the treatment 1.
  • Periodic monitoring of hormone levels and semen analysis is recommended during treatment to assess effectiveness and adjust dosing if needed 1.
  • Side effects may include visual disturbances, mood changes, headaches, and rarely gynecomastia 1.
  • Results vary significantly between individuals, and the medication may take 2-3 months to show effects due to the sperm production cycle 1.

Treatment Approach

  • Clomid is often prescribed in infertile men with normal serum testosterone levels to improve semen parameters and fertility outcomes, although its benefits are small and may be outweighed by other forms of medically-assisted reproduction, such as IVF 1.
  • Exogenous FSH may be used as an adjunct for treatment of hypogonadotropic hypogonadism (HH) to initiate and maintain spermatogenesis, but its use in idiopathic infertile men without HH has limited fertility benefits and is not FDA-approved for this use in men 1.
  • The cost-to-benefit ratio of FSH treatment is questionable, and men are typically treated for 3 months or more to effect spermatogenesis, with a small incremental increase in pregnancy rates 1.

Additional Recommendations

  • There are no clear, reliable data to support the use of supplements, such as vitamins, antioxidants, or nutritional supplement formulations, in improving fertility outcomes, although they are likely not harmful 1.
  • For men with non-obstructive azoospermia (NOA), it is ideal to optimize spermatogenesis and hence the chances of sperm recovery at the time of attempted surgical sperm retrieval, but the effectiveness of medical interventions, such as SERMs, AIs, and hCG, is uncertain and requires further study 1.

From the Research

Clomid Treatment for Low Sperm Count

  • Clomid, also known as Clomiphene citrate, is used to treat low sperm count in men, particularly those with idiopathic hypofertility or oligozoospermia 2, 3.
  • The medication works by stimulating the hypothalamic-pituitary axis, increasing the production of gonadotropins, which in turn stimulates the testes to produce more sperm 2.
  • Studies have shown that Clomid can be effective in improving sperm parameters, including concentration and motility, in infertile men 3, 4.
  • The optimal dosage and treatment duration for Clomid in men with low sperm count are still being researched, but high-dose, alternate-day therapy has been shown to be effective in some studies 3.
  • Clomid has also been found to be well-tolerated and safe for use in men with low sperm count, with no serious adverse effects reported in most studies 5, 4.

Efficacy of Clomid for Low Sperm Count

  • A systematic review and meta-analysis found that Clomid significantly increased sperm concentration and motility in infertile men, with a mean difference of 8.38 x 10^6/ml and 8.14%, respectively 4.
  • Another study found that Clomid increased total testosterone, follicle-stimulating hormone, luteinizing hormone, and estradiol levels in men with low sperm count 4.
  • However, the effectiveness of Clomid in achieving pregnancy is still uncertain, with only one study reporting a statistically significant benefit on pregnancy rate 5.
  • A study comparing Clomid to human chorionic gonadotropin (hCG) found that both treatments were effective in restoring testosterone levels in men with hypogonadism, with Clomid being a simpler and cheaper option 6.

Considerations for Clomid Treatment

  • Clomid should only be used under the guidance of a healthcare professional, as the optimal dosage and treatment duration may vary depending on individual circumstances 2, 3.
  • Men with low sperm count should be carefully evaluated and monitored while undergoing Clomid treatment to ensure the best possible outcomes 5, 4.
  • Further research is needed to fully understand the efficacy and safety of Clomid for low sperm count, as well as its potential long-term effects 5, 4.

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

Have a follow-up question?

Our Medical A.I. is used by practicing medical doctors at top research institutions around the world. Ask any follow up question and get world-class guideline-backed answers instantly.