Why do I keep getting urinary tract infections?
You may keep getting urinary tract infections partly because of anatomy, since women have a short urethra, and some people are simply more prone. Common contributors: holding urine long, low fluid intake, sex without urinating afterward, spermicides, and after menopause, thinning tissues from low estrogen.
Prevention with evidence: drink enough to urinate pale several times daily, urinate after sex, and for postmenopausal women, ask about vaginal estrogen, which cuts recurrences substantially. Cranberry helps modestly at best.
Three or more infections a year is the formal definition of recurrent and deserves a strategy visit, sometimes including preventive antibiotics or further tests.
Source: NHS, urinary tract infections
See a doctor promptly if
- Fever, shivering, back or flank pain, vomiting or confusion. These suggest a kidney infection and need same-day medical care
- Visible blood in the urine, especially if it persists after the infection has been treated
- Symptoms that do not settle within forty-eight hours of starting treatment, or that come straight back
- Urinary symptoms during pregnancy, which always need prompt assessment
What tends to be driving them
| Result | In short | What it means |
|---|---|---|
| Three or more in a year | This is the definition | Or two in six months. That is the threshold at which it stops being bad luck and earns a proper look rather than another three-day course. |
| After sex | Very common pattern | Mechanical, not hygiene. Passing urine afterward helps a little, and where it is frequent, a single preventive dose taken after sex is a recognized option worth asking about. |
| After menopause | Often the real cause | Falling estrogen thins the tissue and changes the bacteria that live there. Vaginal estrogen is one of the better-evidenced preventions and is not the same as hormone replacement taken by mouth. |
| Not emptying fully | Worth measuring | An enlarged prostate, a prolapse, or a bladder that does not empty leaves urine sitting. A simple scan after passing urine answers it. |
| Diabetes, or high blood sugar | Feeds them | Sugar in the urine and a slower immune response. Recurrent infections are one way undiagnosed diabetes announces itself. |
| Cranberry, D-mannose, probiotics | Weak at best | Cranberry may help a little in women with recurrent infection and does nothing once one has started. None of these treat an infection, and none replaces a urine culture when they keep coming back. |
Recurrent infection is worth a urine culture rather than another empirical course, because the pattern of bacteria is what changes the plan. Check it against the guidelines.
Try the symptom diary10 seconds a day, free, nothing to installWhether this is the third time this year or the first changes what a doctor does next, and a dated list settles it in seconds.
Look up another result
A result is rarely the only one on the page. Each of these gives the bands, in both unit systems, and what happens next.
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- HDL result6 bands
- Health age result6 bands
- How late is late?6 bands
- How long it usually lasts, by cause5 bands
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- Is this a fever?8 bands
- LDL result5 bands
- MCV number3 bands
- Median grip strength after 50, by age and sex8 bands
- Morning readings, and what to do with them6 bands
- Platelet count6 bands
- Potassium result6 bands
- Prolactin result6 bands
Answered by the AskDoc Medical Team · Medically reviewed under our Medical Director, MBBS · How we review
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