Understand the treatments used for male infertility, with clear explanations from Heracles and expertise in male reproductive health behind our team.
Male infertility treatment starts with finding the cause. Semen results, whether sperm are present, time spent trying and both partners’ reproductive health determine the next step.
Options include treating a specific condition, helping sperm reach the ejaculate, assisted conception or an agreed period of trying naturally. No treatment, including ICSI, can guarantee a live birth.
Heracles was co-founded by Professor Tet Yap and Professor Suks Minhas, whose clinical expertise includes male fertility and reproductive health. That experience sits behind our approach to men’s health. Meet the Heracles clinical team or contact the Heracles team.
A treatment decision should not normally be made from one semen sample. NICE recommends confirming an abnormal first semen analysis, ideally after about three months. Azoospermia or severe oligozoospermia should be confirmed as soon as possible.
After two or more abnormal analyses, current NICE guidance recommends examination of the scrotum and testes and consideration of testosterone and gonadotrophin blood tests. The history should cover fertility, sexual function, childhood testicular conditions, surgery, infections, cancer treatment, medicines, hormones and drug use.
Further investigation is selected from the findings. Genetic tests are recommended for certain patterns of azoospermia or very low sperm concentration. Imaging may be required when examination or semen features suggest a varicocele, obstruction or testicular abnormality. NICE advises against sperm DNA-fragmentation testing in the standard UK fertility pathway.
Both partners should be assessed in parallel. A treatment that might improve semen over many months may not be the best use of time when the partner's reproductive assessment indicates a need for prompt assisted conception.
Hypogonadotropic hypogonadism occurs when the brain or pituitary gland does not provide enough hormonal stimulation to the testicles. NICE recommends gonadotrophin therapy for men with this diagnosis. Treatment is specialist-led, requires monitoring and can take time to produce sperm.
Hormone treatment should not be generalised to every low sperm count. NICE says gonadotrophin or anti-oestrogen treatment for impaired semen parameters without hypogonadotropic hypogonadism should only be considered in a clinical trial.
Androgens, including testosterone, should not be offered to treat semen abnormalities. External testosterone can suppress sperm production. A man already taking prescribed testosterone who wants to conceive needs a supervised review, not abrupt discontinuation or self-prescribed “post-cycle” medicine.
A confirmed infection should be treated appropriately for the organism and clinical condition. White blood cells in semen do not by themselves prove infection. NICE advises against antibiotics solely to treat semen leukocytes unless an infection has been identified, because this has not been shown to improve pregnancy rates.
When a sexually transmitted infection is identified, partner testing and treatment may also be required. Any structural damage or obstruction may need separate assessment after the infection is treated.
A varicocele can be treated surgically or by radiological embolisation. Current NICE guidance says treatment may be considered when all of the following apply:
The partner’s fertility helps determine whether varicocele treatment is appropriate. A finding seen only on a scan, normal semen results or an unrelated fertility problem does not automatically justify treatment.
Obstructive azoospermia means sperm are being produced but cannot reach the ejaculate. Causes include vasectomy, congenital absence of a reproductive duct and scarring after infection, injury or surgery.
NICE recommends offering either surgical correction or surgical sperm retrieval. The decision should take account of:
Reconstructive surgery may restore sperm to the semen in selected cases. Retrieval obtains sperm directly from the epididymis or testicle for assisted conception. Procedures include PESA, MESA, TESA and TESE, selected according to the site and cause of obstruction.
Non-obstructive azoospermia results from severely reduced or absent sperm production rather than a blockage. NICE recommends offering surgical sperm retrieval and considering microscopic testicular sperm extraction, known as micro-TESE.
Retrieval is not always successful. A genetic and clinical work-up is required before surgery because the underlying cause affects the chance of finding sperm and the implications for a child. NICE says surgical retrieval should not be offered when a complete Y-chromosome AZFa or AZFb microdeletion is present because sperm retrieval is not expected to succeed.
Sperm retrieved surgically normally need to be used with ICSI.
With standard in vitro fertilisation, eggs and prepared sperm are placed together in the laboratory and allowed to fertilise. With intracytoplasmic sperm injection, an embryologist injects one sperm directly into an egg. ICSI is carried out as part of an IVF cycle; it is not a separate route that avoids ovarian stimulation and egg collection.
NICE recommends:
ICSI helps sperm enter the egg but does not correct egg quality, embryo development, implantation or pregnancy factors. The HFEA therefore does not publish a separate overall success rate for ICSI; outcomes are similar to IVF and depend substantially on the age and reproductive circumstances of the person providing the eggs.
Intrauterine insemination places prepared sperm inside the uterus around ovulation. It is commonly used with donor sperm and in some other pathways. Its suitability for male-factor infertility depends on the number and quality of motile sperm after preparation and the full fertility assessment.
IUI does not overcome severe sperm deficiency in the way ICSI may. A clinic should explain why IUI, IVF or ICSI is being recommended and give outcome information relevant to the couple's circumstances rather than quoting a generic headline rate.
Donor sperm may be considered when usable sperm cannot be obtained, a serious inherited condition is a concern or the couple decides against further retrieval or ICSI. Treatment may involve IUI or IVF depending on the recipient's clinical circumstances.
The Human Fertilisation and Embryology Authority recommends using an HFEA-licensed UK clinic. Licensed treatment provides donor screening, consent, records, counselling and legal protections that are not guaranteed through informal arrangements or unregulated donor websites.
NICE says fertility preservation should be discussed at the earliest opportunity before treatment or in a medical condition likely to impair fertility. Sperm cryopreservation should be offered to men and boys of reproductive age who are likely to be made infertile.
This discussion should take place before chemotherapy, radiotherapy or other gonadotoxic treatment whenever the clinical timetable permits. More than one sample may be stored. Not every sperm survives freezing and thawing, but frozen sperm can later be used in an appropriate fertility treatment.
| Clinical finding | Possible specialist option | Main limitation |
|---|---|---|
| Hypogonadotropic hypogonadism | Gonadotrophin treatment with monitoring | Applies to a defined hormonal diagnosis and response takes time |
| Clinical varicocele with reduced semen parameters | Surgery or radiological treatment may be considered | Partner factors and the chance of spontaneous conception still matter |
| Obstructive azoospermia | Reconstructive surgery or surgical sperm retrieval | Retrieval usually requires ICSI and neither route guarantees a birth |
| Non-obstructive azoospermia | Surgical retrieval, with micro-TESE considered | Sperm may not be found and genetic results can alter suitability |
| Abnormal semen parameters | Natural attempts, cause-specific care, IVF or ICSI depending on severity | One abnormal sample is not enough to select treatment |
| Surgically retrieved sperm or previous failed fertilisation | ICSI | ICSI supports fertilisation but cannot guarantee pregnancy or live birth |
A useful consultation brings together the confirmed diagnosis, both partners’ results and the treatment that fits your circumstances. It should explain expected outcomes, risks, costs, timing, alternatives and any need for genetic counselling. Check proposed add-ons against NICE guidance and the HFEA’s evidence ratings.
NHS funding and access vary across the UK and between local commissioning arrangements in England. The HFEA clinic finder provides inspection information and treatment data for licensed providers.
Questions about the next step? Contact the Heracles team or meet the Heracles clinical team.
