UTI

Audience: Patients and providers
Status: Clinical guide · patient + provider
Last updated: 2026-03-09

1. Clinical overview

UTI is a symptomatic urinary tract infection that should be approached by syndrome and risk profile, with careful distinction between uncomplicated cystitis, complicated infection, pyelonephritis, and asymptomatic bacteriuria.

2. Common causes and risk factors

Most uncomplicated UTIs are ascending bacterial infections (often E. coli).
Risk factors: sexual activity, postmenopausal changes, urinary retention/catheters, anatomic issues.

3. Typical symptoms

Dysuria, urgency, frequency, suprapubic discomfort; systemic signs suggest complicated infection/pyelonephritis.

4. Diagnosis and evaluation

Confirm diagnosis with guideline-based history, exam, and indicated testing.
Screen for severity, complications, and high-risk comorbid conditions.
Identify social or access barriers that could affect treatment success.

5. Treatment (non-pharmacologic)

Hydration and symptom support; stewardship-focused patient education.
Avoid unnecessary treatment of asymptomatic bacteriuria except specific indications.

6. Treatment (pharmacologic)

Uncomplicated cystitis commonly uses nitrofurantoin, trimethoprim/sulfamethoxazole when local resistance allows, or fosfomycin.
Alternatives such as amoxicillin/clavulanate, cefpodoxime, or cefdinir may be used in selected cases, while fluoroquinolones are usually reserved for more complicated scenarios.
Pyelonephritis or complicated infection may require ceftriaxone, ciprofloxacin, levofloxacin, or other culture-guided therapy depending on severity, renal function, and sepsis risk.

7. Monitoring and follow-up

Symptom improvement timeline, culture review when obtained, recurrence risk factors.

8. Practical counseling points

Give patients a clear “what to do today / when to call / when to seek urgent care” plan.
Use teach-back to confirm understanding of treatment goals and medication instructions.
Simplify regimens when possible to improve adherence and outcomes.

9. Red flags and escalation

Escalate care urgently for severe or rapidly worsening symptoms.
Reassess diagnosis if expected response does not occur within the anticipated timeline.

10. Guideline references

Note: Educational guide only; not a substitute for individualized medical care.