Experiencing a urinary tract infection (UTI) after sex is a common and often painful situation, particularly for women. Due to anatomical differences, women are at greater risk of UTIs, with around 50-60% likely to experience at least one in their lifetime. 

In the UK alone, UTIs account for nearly 14 million prescriptions each year, with a significant percentage issued to women aged 18-40, a demographic at increased risk due to sexual activity. 

Sexual intercourse is a known risk factor for UTIs because it can transfer bacteria from the genital and anal areas into the urinary tract, leading to an infection. Learning how to prevent a UTI after sex can help reduce this discomfort and keep you feeling your best.

1. Maintain good personal hygiene

Maintaining personal hygiene, especially before and after sexual activity, is crucial in reducing UTI risk. By washing the genital area with warm water and a gentle cleanser, you reduce the amount of bacteria that could potentially be transferred into the urinary tract. 

For both partners, hygiene is essential: studies from Public Health England indicate that proper hygiene reduces the risk of UTIs by up to 30%. Avoid scented soaps, which can disrupt the natural balance and make you more susceptible to infections.

2. Urinate before and after intercourse

One of the simplest and most effective ways to prevent a urinary tract infection is to urinate before and directly after sex. Urinating flushes out bacteria that might have entered the urethra during intercourse. 

This practice can significantly reduce the chances of developing a UTI. Making it a habit to visit the loo both before and after sex may seem minor, but it’s a small step with a significant impact on your urinary health.

3. Stay hydrated throughout the day

Drinking plenty of water helps to dilute urine and encourages frequent urination, both of which help flush out bacteria from the urinary tract. The NHS recommends drinking at least six to eight glasses of water daily.

Hydration is essential to keeping your body’s natural defences functioning properly and reducing the build-up of bacteria that can lead to infections.

4. Consider cranberry supplements or juice

Cranberries contain compounds that may prevent bacteria from adhering to the bladder walls, which is thought to be helpful in reducing UTI frequency. While clinical studies in the UK have shown mixed results, some people find cranberry supplements beneficial in reducing recurrent infections. 

The NHS suggests that cranberries, in any form, are generally safe to include in your diet, although they shouldn’t replace other preventive measures. Adding cranberry juice or supplements as a complementary approach could provide an added line of defence for those susceptible to UTIs.

5. Avoid harsh feminine products and scented soaps

Many feminine hygiene products, like scented soaps, douches, and deodorants, can disrupt the natural balance of bacteria and cause irritation. This increases susceptibility to UTIs by weakening your body’s natural defences. Opt for mild, unscented soaps and products that are pH-balanced for the genital area.

6. Choose breathable, cotton underwear

Choosing the right type of underwear can impact urinary tract health. Tight, synthetic fabrics can trap moisture and warmth, creating an environment where bacteria thrive. Instead, opt for cotton underwear, which is more breathable and moisture-wicking, helping reduce bacterial growth. 

Health studies suggest that those who switch to cotton underwear report fewer UTIs. Additionally, changing out of damp clothing, like swimwear or workout clothes, as soon as possible can also help prevent infections.

7. Use adequate lubrication during intercourse

If you experience dryness during sex, using a water-based lubricant can prevent friction and irritation that might lead to tiny cuts or abrasions near the urethra. These cuts can act as an entry point for bacteria. 

The NHS recommends avoiding oil-based lubricants as they can introduce additional chemicals and alter the pH balance, potentially increasing infection risk. Instead, water-based or silicone-based options are generally safer and less irritating.

8. Consult with a healthcare provider about antibiotic options

For those who suffer from recurrent UTIs, low-dose antibiotics post-intercourse can sometimes be a preventive option. However, antibiotics should only be used under medical guidance to avoid contributing to antibiotic resistance. Your doctor can advise on whether this is a suitable option for you based on your health history and specific needs.

9. Practise safe sex

Using condoms or other barriers during sex helps reduce the transfer of bacteria, lowering the risk of a urinary tract infection. Although not foolproof, this method acts as a first layer of protection. 

Sexual health clinics advocate for safe sex as a general health measure, which can also contribute to a lower risk of UTIs. Being mindful of safe sex practices is not just about protection from sexually transmitted infections but also supports urinary health.

10. Recognise the early signs of a UTI

Knowing the signs of a urinary tract infection can allow for prompt treatment, reducing the likelihood of the infection worsening. Common symptoms to look out for include:

It is possible to prevent UTIs after sex

Preventing a UTI after sex is achievable with a few practical adjustments to your routine.

While some lifestyle changes may take a little getting used to, they can make a big difference in preventing recurrent infections. Remember, urinary health is an essential part of your overall well-being, and simple preventive measures can go a long way in supporting a UTI-free life.