Urinary tract infection and urethritis: symptoms and when to seek care

Published: 2026-11-05Last reviewed: 2026-11-058-minute readReviewed by: Dr. Gabriel Fernando Peñarrieta Pozo

Key points

✓ Pain or burning during urination can occur with both a urinary tract infection and urethritis, but the causes, tests, and management may differ.
✓ Urgency and frequent urination can suggest a bladder infection; urethral discharge or a history of sexual exposure requires assessment for urethritis and sexually transmitted infections.
✓ Fever, chills, back or flank pain, vomiting, or a worsening general condition require prompt medical attention.

A bladder infection may cause pain or burning during urination, frequent urination, urgency even when the bladder is empty, lower abdominal pressure, and sometimes blood in the urine.
Urethritis is inflammation of the urethra. It may cause burning, itching or irritation at the urinary opening and clear, mucoid, or pus-like discharge; some people have no symptoms.
Urine appearance or odor alone does not confirm an infection. Dehydration, foods, medicines, and other conditions can also change it.
Vaginal pain, genital discharge, sores, testicular or pelvic pain, and symptoms following a sexual exposure are important details to share during the consultation.

A urinary tract infection is usually caused by bacteria reaching the bladder or another part of the urinary tract; urethritis may be infectious or noninfectious, and some causes are sexually transmitted.
The symptoms overlap and cannot reliably identify the cause. Assessment may require urinalysis, urine culture, or other tests based on the history and examination.
When urethritis is suspected, a clinician may order specific tests for chlamydia, gonorrhea, or other infections; a routine urine test does not always answer all of these questions.
Identifying the cause helps select the appropriate treatment, prevent complications, and reduce reinfection or transmission to other people.

Drink fluids regularly according to thirst and any advice for other health conditions; forcing excessive amounts of water is not necessary.
Avoid genital irritants, douches, and scented products. Use gentle hygiene and do not place substances inside the urethra.
If there is urethral discharge or a possible sexual exposure, avoid sexual contact until you have been assessed and have followed professional advice for you and, when appropriate, your partners.
Note when symptoms began, fever, pain, urine changes, recent medicines, possible pregnancy, and previous similar infections.

Seek advice for burning, urgency, increased frequency, blood in the urine, urethral discharge, or symptoms that persist or return.
Assessment should be early during pregnancy, in children, in men, and in people with diabetes, kidney disease, reduced immunity, a urinary catheter, or urinary tract abnormalities.
If you received treatment, complete it as directed and return for assessment if you do not improve, worsen, or the symptoms recur.
A partner diagnosed with a sexually transmitted infection requires professional advice even if you have no symptoms.

Fever, chills, or back or flank pain, especially with nausea or vomiting
Difficulty urinating, no urine output, heavy bleeding, or clots
Severe pain, marked weakness, confusion, fainting, or rapid deterioration
Urinary symptoms during pregnancy or a temperature of 38 °C or higher in a baby younger than three months
Testicular pain or swelling, severe pelvic pain, or urethral discharge together with fever

Do not take leftover antibiotics or share treatment; it may not work for the cause and can make diagnosis more difficult.
Do not place home remedies, antiseptics, or other substances inside the urethra or vagina.
Do not assume every burning sensation is a urinary tract infection or hide a possible sexual exposure from the clinician.
Do not delay care if fever, flank pain, vomiting, pregnancy, or worsening general condition is present.

If you have symptoms, risk factors, or questions about your situation, arrange a professional medical assessment.