Urinary Tract Infection Causes, Treatment and Prevention
Burning. Urgency. The feeling that you need to go again even though you just left the bathroom.
A urinary tract infection, also known as a UTI, can be uncomfortable and disruptive. When infections keep returning, they can also become frustrating—and leave you wondering what is triggering them.
Recurrent urinary tract infections are common, particularly among women. The good news is that there are effective ways to treat them, identify possible causes and reduce the chance of another infection.
What is a recurrent UTI?
A urinary tract infection occurs when bacteria enter the urinary tract and begin to multiply. Most UTIs involve the bladder, which is called cystitis.
Typical UTI symptoms include:
- Burning or pain with peeing
- A frequent or intense urge to pee
- Passing small amounts of urine
- Pressure or discomfort in the lower abdomen
- Cloudy, bloody or strong-smelling urine
A UTI is generally considered recurrent when you have:
- Two or more infections within six months, or
- Three or more infections within one year
Not every episode of urinary burning or urgency is a UTI. Vaginal infections, sexually transmitted infections (STIs), overactive bladder, pelvic floor conditions, bladder pain syndrome, and changes related to menopause can cause similar symptoms. Irritation from personal-care or laundry products may also feel like a UTI, even when no infection is present.
Common UTI triggers—and symptoms that can feel like a UTI
Women often notice that urinary symptoms follow certain activities, product(s) use or changes in routine, such as traveling. Some of these factors can increase the risk of a bacterial infection. Others irritate the vulvar, vaginal or urinary tissues and create symptoms that can feel similar to a UTI.
Here are some common triggers:
Not drinking enough water
When you do not drink enough fluid, you pee less often. This may give bacteria more time to remain in the urinary tract and multiply. Ugh!
Increasing water intake may help reduce infections, particularly for women who typically drink relatively little. Your fluid needs may be different if you have heart, kidney or other medical conditions.
Sexual activity
Sex can move bacteria closer to the urethra. Some women notice that their UTIs consistently begin shortly after intercourse. Peeing after intercourse may help flush bacteria out of the urethra.
Using spermicides may also increase UTI risk. This includes spermicide-coated condoms and some forms of birth control used with spermicide.
Douching and scented products
Douching is not necessary for vaginal health and can disrupt the vagina’s normal balance of protective bacteria. Scented sprays, wipes, powders, bubble baths, and feminine washes may also irritate sensitive tissues. Our team recommends just plain water to keep yourself fresh.
(These products do not necessarily cause a bacterial bladder infection, but they can contribute to burning, itching or discomfort that may be mistaken for a UTI.)
Shower soap and body wash
Strongly scented soaps, body washes and bath products can irritate the vulva and the opening of the urethra. Even products labeled “natural” may contain fragrances, essential oils or other ingredients that cause irritation.
Laundry detergent and fabric products
Fragranced laundry detergent, scent boosters, dryer sheets and fabric softener may leave residue on underwear, workout clothing or towels. For people with sensitive skin, that residue can cause vulvar irritation or burning.
Tight, damp or nonbreathable clothing
Remaining in a wet swimsuit or sweaty workout clothing can create a warm, moist environment around the vulva – just what bacteria enjoy. Tight clothing and nonbreathable fabrics may also increase irritation.
Changing out of damp clothing and choosing breathable underwear (like cotton) can help keep the area more comfortable, although clothing alone is not usually the cause of a bladder infection. Also, going underwear/bottoms free at night can help reduce infection-risk.
Holding urine
Regularly delaying urination may allow bacteria more time to multiply. Empty your bladder when you feel the need, rather than holding it for long periods.
Menopause and lower estrogen
Estrogen helps maintain healthy vaginal and urinary tissues and supports protective vaginal bacteria. During perimenopause and after menopause, declining estrogen can make the tissues thinner, drier and more vulnerable to irritation and infection.
For some women, recurrent UTIs are part of genitourinary syndrome of menopause (GSM), which may also cause:
- Vaginal dryness
- Burning or irritation
- Urinary urgency
- Frequent urination
- Discomfort during sex
Why do some women get recurrent UTIs?
In addition to sexual activity, dehydration and menopause, several other factors can increase the likelihood of repeat infections.
Shortened urethra
Most UTIs occur when bacteria—often bacteria that normally live in the digestive tract—reach the urethra and travel into the bladder. Because the female urethra is relatively short and located near the vagina and anus, bacteria have a shorter distance to travel. Some women have shorter urethras than others, increasing the likelihood of recurring UTIs.
Inability or difficulty emptying the bladder
Urine that remains in the bladder can give bacteria more time to grow. Incomplete emptying may be related to:
- Infections
- Constipation
- Certain medications
- Nerve conditions
- Changes in bladder function
Pregnancy
Pregnancy also changes how UTIs are evaluated and treated. Anyone who is pregnant and develops possible UTI symptoms should contact their healthcare provider promptly.
Other medical factors
Diabetes, kidney or bladder stones, urinary tract abnormalities, catheter use and a weakened immune system may contribute to recurring or more complicated infections.
How are recurrent UTIs evaluated?
When infections keep returning, our team will look for patterns rather than simply treating each episode in isolation.
Evaluation may include:
- Reviewing your symptoms and how often they occur
- Discussing whether infections are related to sex, menopause, certain products or another trigger. It might be a combination of all of them!
- Obtaining a urine sample and urine culture
- Reviewing previous culture results and antibiotics
- Performing a pelvic exam when appropriate
- Checking whether the bladder is emptying completely
A urine culture identifies the bacteria causing the infection and shows which antibiotics are most likely to work. Documenting positive cultures is especially helpful when evaluating recurrent UTIs.
Most women with uncomplicated recurrent UTIs do not automatically need imaging or a procedure to look inside the bladder. Additional testing may be recommended when infections are unusual, do not respond to treatment or occur along with kidney stones, persistent blood in the urine or other concerning symptoms.
How are recurrent UTIs treated?
Treatment of an active infection
Most bacterial UTIs are treated with an antibiotic. The right medication depends on factors such as:
- Your symptoms
- Urine culture results
- Medication allergies
- Previous antibiotic use
- Local antibiotic resistance patterns
- Kidney function
- Whether you are pregnant
It is important to take antibiotics exactly as prescribed and not use leftover medication from a previous infection. Unnecessary or repeated antibiotic exposure can cause side effects and contribute to antibiotic resistance.
A medication may also be recommended temporarily to ease urinary burning, but symptom-relief medications do not eliminate the bacteria causing an infection.
Prevention with antibiotics
When UTIs continue despite other measures, a healthcare provider may recommend preventive antibiotic treatment.
Depending on the pattern of infections, options may include:
- A low-dose antibiotic taken for a limited period
- A single antibiotic dose after sex when infections are consistently sex-related
- A plan that allows you to begin treatment promptly when familiar symptoms occur, often after providing a urine sample
Because every antibiotic has potential risks, preventive treatment should be individualized and reviewed periodically.
Vaginal estrogen can reduce recurrent UTIs
For many perimenopausal and postmenopausal women, low-dose vaginal estrogen can significantly reduce recurrent UTIs. It helps restore the health of vaginal and urinary tissues and supports a more protective vaginal environment.
Vaginal estrogen is different from systemic hormone therapy and is available as a cream, tablet, insert or ring.
Our team can help determine whether it is appropriate for you, particularly if you have a history of an estrogen-sensitive cancer or another condition that affects hormone use.
Non-antibiotic prescription for UTI prevention
Methenamine hippurate is a prescription medication that may help prevent recurrent UTIs without being a traditional antibiotic. It changes into an antibacterial substance in acidic urine and may be an option for some women.
It is not appropriate for everyone, including some people with kidney or liver conditions, so it should be discussed with a healthcare provider.
Consider vaginal probiotics to reduce UTIs
Vaginal probiotics containing certain lactobacillus strains may help support healthy vaginal bacteria, but research has not yet shown that they reliably prevent recurrent UTIs. Talk with your healthcare provider before adding a probiotic to your prevention plan.
Do cranberry products help prevent UTIs?
Possibly. Research suggests that cranberry products may modestly reduce the risk of symptomatic UTIs in some women who experience recurrent infections.
Cranberry products vary widely in form and concentration, however, and cranberry juice can contain significant amounts of sugar. Cranberry should not be used to treat an infection that is already present.
People taking warfarin or managing certain medical conditions should talk with their provider before using cranberry supplements.
What about D-mannose to treat UTIs?
D-mannose is a naturally occurring sugar found in fruit. It is often marketed for UTI prevention, but research shows mixed results. It should not replace evidence-based evaluation or treatment.
Everyday steps that may help prevent UTIs
No prevention routine works for everyone, but these habits may reduce your risk or help prevent irritation:
- Drink enough water throughout the day.
- Avoid routinely holding your urine.
- Pee after sex.
- Discuss alternatives if you use spermicide.
- Avoid douching and scented feminine products.
- Use mild, fragrance-free soap externally.
- Consider fragrance-free laundry detergent.
- Change out of wet swimsuits and sweaty clothing.
- Wipe from front to back.
- Address constipation or difficulty emptying your bladder.
- Talk with our team about vaginal estrogen if you are in perimenopause or menopause.
When to seek medical care quickly for a UTI
Contact a healthcare provider promptly if you have UTI symptoms and are pregnant or if you develop:
- Fever or chills
- Pain in your back or side
- Nausea or vomiting
- Visible blood in your urine
- Confusion or significant weakness
- Symptoms that worsen or do not improve with treatment
These can be signs that an infection has reached the kidneys or that another condition needs attention.
You do not have to keep treating one UTI at a time
Repeated urinary symptoms deserve a closer look. By reviewing your symptoms, culture results, life stage, personal-care products and possible triggers, your OBGYN provider can help create a prevention plan that fits you.
Treatment may be as straightforward as increasing water intake, changing an irritating product, adjusting a birth control method or beginning vaginal estrogen. For other women, preventive medication or additional evaluation may be appropriate.
If urinary symptoms keep returning, make an appointment with our team to talk about more than the latest infection. Our goal for you is not only to help you feel better today, but reduce the likelihood that you will be dealing with the same symptoms again next month.
This content was reviewed by OBGYN physician Hilary Frank, DO, and OBGYN physician Megan Bina, MD. Both see people at Premier Women’s Health – Oakdale OBGYN. 7.29.26.