In this article 6 sections
Male infertility describes factors involving sperm or the male reproductive system that contribute to difficulty achieving pregnancy. It can occur in men who feel healthy and have no difficulty with sex. The concern may only become apparent when a couple has a semen analysis as part of a fertility assessment.
Recognising a male factor is not about assigning blame. Pregnancy depends on both partners, and evaluating them together can save time and identify more suitable options. A result also needs medical attention because some causes are relevant to the man's wider health.
What can affect sperm or its delivery
Sperm production may be affected by hormone problems, genetic conditions, undescended testes, injury or previous treatment such as chemotherapy. A blockage can prevent sperm from reaching the semen even when production is occurring. Some men also have problems with erections or ejaculation that make conception difficult.
A varicocele, which is an enlargement of veins around the testicle, may be relevant in selected cases. Medicines, testosterone and anabolic steroids can also affect sperm production. Sometimes no single cause is found, even after appropriate investigation.
The first assessment
A semen analysis is usually an early test, looking at sperm number, movement and shape. An abnormal result may need repeating because samples vary and illness or collection difficulties can affect the findings. Bring the full report rather than only a verbal description of the result.
The doctor will also ask about previous pregnancies, illnesses, operations, medicines and sexual function. An examination may help identify a concern such as a varicocele or a difference in testicular size. The conversation should be private and respectful, with room to discuss issues that may feel uncomfortable.
When further tests are needed
Selected hormone tests can help when low sperm production or another endocrine concern is suspected. Genetic testing may be recommended for particular patterns, including some cases with very low or absent sperm. Imaging and other investigations are used when they are likely to answer a specific question.
An extensive package is not automatically better than a focused evaluation. Ask how each proposed test could change care and whether a result needs confirmation. The female partner's age and results also influence how quickly the investigation and treatment discussions should proceed.
Treatment depends on the cause
Some men benefit from treatment of an identified hormone problem, management of a selected varicocele or treatment addressing an obstruction. A doctor should explain the expected benefit and the time needed to assess a response. Antibiotics or hormone medicines should not be used without a clear indication and prescription.
When natural conception remains unlikely, IUI or IVF may be discussed depending on the complete assessment. ICSI, which injects one sperm into an egg during IVF, can help in some significant sperm-related problems. It is not a guarantee of fertilisation, pregnancy or a healthy baby.
When no sperm are seen
Azoospermia means no sperm were found in the examined semen sample. It is a finding that needs confirmation and evaluation, rather than a complete diagnosis on its own. The doctor investigates whether there is a blockage, reduced production or another explanation.
In selected circumstances, sperm may be obtained surgically for use with IVF and ICSI. This is not possible or successful in every case, and sometimes donor sperm becomes part of the discussion. The choice should follow a clear explanation of the evidence, alternatives and likely outcomes.
Supporting health during treatment
Stopping tobacco, avoiding recreational drugs and reviewing alcohol, medicines and occupational exposures can be useful. Discuss testosterone or gym supplements openly, and do not discontinue essential prescribed medicines without advice. Improvements in a semen result can take time and are not guaranteed by lifestyle changes alone.
Fertility difficulties can affect confidence and relationships, so emotional support may also help. The next step should be shared by the couple rather than carried by one person in silence. Keep the reports and review plan together so treatment decisions are based on changes that can actually be assessed.