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sperm swimming towards an egg to fertilise

IUI Treatments

What is IUI?

Intrauterine insemination (IUI) is a fertility treatment where specially prepared sperm are placed directly into the uterus during ovulation. This process increases the chances of fertilisation by helping a higher number of better-quality sperm reach the womb and ultimately the egg.

How IUI works

IUI treatment is less invasive and complex than In Vitro Fertilisation (IVF). It involves putting specially prepared sperm directly into the uterus, usually during your natural ovulation cycle. If you have irregular ovulation, fertility drugs can be used to optimise egg production. You can use sperm from a partner or a donor, known as donor insemination (DI).

IUI vs IVF - considerations and comparisons

Key differences

  • IUI involves inserting sperm into the uterus, while IVF involves fertilising eggs in a lab before transferring the embryo to the uterus. 
  • IUI is less invasive and less expensive. 
  • IVF has a higher success rate, due to embryo monitoring and selection, than IUI. 
  • IUI cycles are shorter, but they often involve multiple cycles 

Is IUI right for me?

IUI is recommended to couples who have been trying to conceive naturally for over a year and the reason for being unable to conceive is due to low sperm or poor sperm motility. Preparing the sperm in the lab gives the couple the best chance of conceiving.  

For IUI to be successful the woman’s fallopian tubes must be open and healthy and AMH levels must indicate good levels of ovarian reserves. Female fertility tests should include both an AMH blood test and a scan to determine fertility.  

IUI is the common first step for same-sex female couples using a sperm donor, if the woman looking to carry a pregnancy is fertile. 

When IUI may not be suitable

IUI is not recommended for female factor infertility, unexplained fertility issues, poor-quality sperm, or mild endometriosis, as research suggests it is unlikely to increase your chances of pregnancy in these cases.

What is the IUI Treatment Process?

Step 1: Consultation

Before your consultation with one of our experts, you and your partner will have your fertility tests. Your initial consultation will involve discussing the results of your fertility tests with a consultant. They will take you through all the options and help to determine whether IUI is the best treatment option for you.

Step 2: Ovulation

IUI can be performed during your natural ovulation cycle, but fertility drugs may be used if you have ovulation issues such as irregular periods or lower levels of AMH. The timing of the IUI procedure is crucial, as it must coincide with ovulation, which is monitored using blood or urine tests and ultrasound. Medication can be used to trigger ovulation, with the procedure taking place 36 hours later. An ultrasound scan around day 7 to 9 of your cycle checks the progress of your eggs and the growth of the follicles.

Step 3: Preparing sperm

When ovulation has been confirmed, you’ll be ready for the IUI procedure, and the sperm from your partner or a donor will be prepared for insemination.

Step 4: IUI procedure

A vial containing your sperm sample is attached to a fine, flexible plastic tube, which is inserted through the vagina and cervix into the uterus. Sperm is then pushed through the tube into the uterus, aiming to fertilise an egg. The procedure takes only a few minutes. Some people will experience some mild discomfort or cramps, that subside shortly after. 

Step 5: Monitoring and two-week wait

After the procedure, it’s over to nature to take its course. During this time, you’ll be closely monitored by our team to help give things a helping hand if necessary. Some patients may require progesterone pessaries to help keep the womb lining receptive to any forming embryo. Your consultant will discuss this with you.  

We recommend waiting the full two weeks before testing. We’ve written a blog all about this period to help give people some guidance and reassurance.   

Step 6: Pregnancy test

After two weeks, if your period hasnt come it’s time to take a pregnancy test. If the IUI has been successful and you get a positive pregnancy test, we will invite you into the clinic for blood tests and a scan to confirm.  

If it hasn’t worked this time, we’ll be here to support you and when you are ready, we're here to discuss next steps in your fertility treatment.  

Frequently Asked Questions

While the risks of IUI are low, they include: 

  • Infection following the procedure 

  • Spotting due to catheter insertion 

  • Multiple pregnancies, particularly with ovulation-inducing medication 

IUI is beneficial for single women and same-sex couples without fertility issues using donor sperm. It is also the cheapest form of assisted reproduction, involving no invasive procedures or sedation. The process is mostly painless and carries very low risks.

You can choose a donor from a partner, private sperm bank or Care Fertility’s own sperm bank. We are here to help you with this choice. To learn more about using donor sperm in IVF, click here.

At Care Fertility, our expertise in IUI treatments is extensive. However, IUI success rates are generally lower than IVF due to factors like the lack of embryo monitoring and selection. Success depends on reasons for IUI, the woman's age, sperm count and quality, and whether the cycle is drug-stimulated or natural.

Cost of IUI Treatment

For detailed information on costs, read our guide to fertility treatment costs, or book a consultation to discuss your personalised treatment plan. We understand that cost is an important consideration, and we offer various packages and financing options to make treatment more accessible. 

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Full Fertility Check

For just £449* 


Affordable fertility assessment for you and your partner 

What’s included

  • Pelvic ultrasound

  • Semen analysis or pelvic ultrasound for your partner

  • AMH test

  • Follow up with one of our expert team members

Speak to our team to book yours today on 0800 564 2270

Limited time offer ends 31st July

*Terms and conditions apply.

Medication costs

50% of patients pay less than £40 for their drugs in an IUI cycle. 

The typical cost of medication for the remaining 50% is £375, up to £771 in rare cases. 

IUI with partner sperm
£1,250
IUI with donor sperm
£2,530
HFEA fee - only applicable if using donated sperm
£38

Get started with Care Fertility

Arranging a consultation is simple; we offer virtual and in-person consultations.

You can book your consultation and pre-treatment tests below.

Or if you’d like to talk to someone at Care Fertility about your options, it's straightforward to get started, call us on 0800 564 2270.