Patient education

Urinary tract infection — answered fully.

UTIs are common, uncomfortable and — when they recur — a sign that something deserves proper attention. This guide covers acute infection, recurrent UTI and long-term prevention.

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Overview

A urinary tract infection is caused by bacteria (most often E. coli) entering the urinary system. Lower UTIs affect the bladder (cystitis); upper UTIs reach the kidney (pyelonephritis) and are more serious. In many patients, especially women, UTIs recur — which is where a urologist's evaluation makes the biggest difference.

Symptoms

  • Burning sensation on urination (dysuria)
  • Increased frequency and urgency
  • Cloudy, foul-smelling urine
  • Blood in the urine
  • Suprapubic pain or pressure
  • Fever, chills, flank pain — suggests kidney involvement
  • Causes

  • Bacterial entry — most commonly E. coli
  • Incomplete bladder emptying
  • Sexual activity (in women)
  • Menopause and low oestrogen
  • Urinary stones or catheters
  • Structural or anatomical variations
  • Diagnosis

  • Urine dipstick and full urinalysis
  • Mid-stream urine culture with sensitivity
  • Blood tests if systemic infection suspected
  • Ultrasound of the urinary tract
  • Cystoscopy for recurrent or complicated cases
  • CT KUB when stones or obstruction are suspected
  • Treatment

    Antibiotics

    Targeted based on culture. Uncomplicated cystitis often resolves with a 3–5 day course; pyelonephritis needs longer, sometimes intravenous therapy.

    Hydration & analgesia

    Generous fluid intake and symptomatic relief while the antibiotic works.

    Recurrent UTI plan

    Post-coital prophylaxis, low-dose long-term antibiotics, vaginal oestrogen (post-menopause), or non-antibiotic strategies.

    Address the cause

    Treatment of stones, obstruction or incomplete emptying is often what finally ends the cycle of recurrence.

    Prevention

  • Drink 2–2.5 litres of fluid daily
  • Do not delay urination — go when you need to
  • Wipe front-to-back (for women)
  • Urinate soon after intercourse
  • Consider cranberry or D-mannose (evidence modest but safe)
  • Discuss vaginal oestrogen if post-menopausal
  • Frequently asked

    When to see a doctor

    Don't wait if symptoms persist.

    If you notice worsening pain, blood in the urine, fever, or symptoms that disrupt sleep or intimacy — book a consultation. Early evaluation almost always means a simpler treatment.

    Book with Dr. Arif
    Related

    Urinary Tract Disorders

    Precise diagnosis and definitive treatment for recurrent UTIs, incontinence and bladder disease.
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    A
    Dr. Arif Ali
    Urologist · Sexologist
    Consultant Urologist & Sexologist based in Karachi. Two decades of endoscopic, laser and reconstructive urology — delivered with warmth and complete privacy.

    Clinic Timings

    • Monday – Friday · 5:00 PM – 9:00 PM
    • Saturday · 4:00 PM – 8:00 PM
    • Sunday · By appointment
    Garden Road, Preedy Quarters, Karachi, Pakistan
    +92 321 2816610
    © 2026 Dr. Arif Ali Shaikh. All rights reserved.
    Karachi, Pakistan · Consultant Urologist & Sexologist
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