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How it works

Intrauterine insemination (IUI) involves placing sperm inside a woman’s uterus to facilitate fertilisation. The aim is to increase the number of sperm reaching the fallopian tubes and thus increase the chances of fertilisation. Today, most (though not all) IUI treatments begin with a short course of hormone therapy for the female partner to encourage the development of several follicles and increase the chance of pregnancy. This stimulated IUI requires close ultrasound monitoring to avoid the risk of multiple pregnancy. IUI can also be performed in a natural cycle, in which the introduction of sperm coincides with ovulation.

IUI vs IVF

IUI is a less invasive and less expensive option compared to IVF and is the most commonly applied technique for donor insemination.  Success rates using IUI vary, and some patient groups, particularly lesbian couples and single women, can do very well. However, where there is a problem with the quality of the sperm, the chance of pregnancy has been found to decrease. Most doctors suggest that IUI be seen as a course of treatment with three or more cycles recommended.  The cycles do not have to be consecutive to be effective, although recent studies suggest that consecutive cycles are associated with a higher pregnancy rate.

Donor Insemination

The London Women’s Clinic has been treating single women and lesbian couples for over a decade and has the largest donor insemination programme in the UK.  In conjunction with our partners, the London Sperm Bank, donor sperm can be purchased via their online catalogue and with no wait for treatment.

Sperm donors are screened for sexually transmittable agents (including HIV) and genetically inherited diseases. Sperm samples are frozen and quarantined for a minimum of six months, at which point the test for HIV is repeated prior to use.

Counselling and legal advice

For all patients considering treatment using donor sperm, counselling is always necessary to ensure they are fully aware of the UK's legislation on the identity of sperm donors. All children born as a result of donor sperm in the UK have the right at the age of 18 to know the donor’s identity.

Success Rates

These statistics show our IUI success rates for our individual clinics across the country - those that successfully lead to pregnancy. All pregnancies were confirmed for foetal heartbeat by ultrasound scans.

Under 35
35-37
38-39
40-42
Over 42
Three Cycle Package
Under 35
35-37
38-39
40-42
Over 42
Under 35
35-37
38-39
40-42
43 and over
Fresh donor eggs
Frozen donor eggs
Known egg donor
Intra-partner
Egg-sharing (recipient)
Under 35 Natural Cycle
All Ages Natural Cycle
Under 35 Stimulated Cycle
All Ages Stimulated Cycle
Under 35 Natural cycle
All Ages Natural Cycle
Under 35 Stimulated Cycle
All Ages Stimulated Cycle

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