Urinary Tract Infections

Causes & Risk Factors

UTIs occur when bacteria (most commonly from the gastrointestinal tract) enter the urinary tract, with risk influenced by:

•  Female anatomy — a shorter urethra makes bacterial entry into the bladder more likely, contributing to higher UTI frequency in women.

•  Sexual activity — can introduce bacteria into the urinary tract.

•  Urinary catheter use — significantly increases infection risk.

•  Diabetes — associated with increased UTI risk and susceptibility.

•  Urinary tract abnormalities — including structural issues that impede normal urine flow.

•  Menopause — hormonal changes can increase UTI susceptibility in some women.

Symptoms & When to Test

UTI symptoms depend partly on whether the infection is limited to the bladder (lower UTI) or has spread to the kidneys (upper UTI).

•  Burning sensation during urination (dysuria)

•  Increased urinary frequency and urgency

•  Cloudy, dark, or foul-smelling urine

•  Lower abdominal or pelvic discomfort

•  Fever, chills, or flank (back/side) pain — suggestive of possible kidney involvement

•  In older adults, confusion can sometimes be the primary presenting symptom

When Should You Consider Testing?

Testing is generally appropriate for symptoms suggestive of a UTI, particularly for recurrent infections, symptoms not responding to initial treatment, or when fever or flank pain suggests possible kidney involvement.

Why Tests Are Combined

Urinalysis provides a rapid initial screen for signs of infection (such as white blood cells, nitrites, or blood), urine microscopy examines the sample directly for bacteria and cells, and urine culture identifies the specific causative organism — together they build from a quick screening result toward a definitive, organism-specific diagnosis.

Antimicrobial susceptibility testing, performed on the cultured organism, is particularly valuable because urinary bacteria increasingly show antibiotic resistance patterns, meaning a treatment that would have worked in the past may no longer be effective — this is why culture-based testing (rather than urinalysis alone) is recommended for recurrent or complicated infections.

For straightforward, first-time infections, urinalysis alone may be sufficient to guide initial treatment, but culture becomes increasingly valuable as infections recur or fail to respond to standard treatment.

Tests Available at NPL

Most infectious-disease molecular tests and microbiological investigations do not require fasting. However, some blood tests ordered at the same time may have specific preparation requirements. Please follow the instructions provided by your doctor or NPL.

Home Sample Collection

NPL offers convenient home sample collection for Urinary Tract Infections blood tests, so you don't need to visit a lab in person.

→ Book your test online, via the NPL app, or by calling +977 1 5970147 and select a convenient time slot for home sample collection.

→ A certified and experienced NPL phlebotomist visits your home at the scheduled time, following strict hygiene and safety protocols.

→ Your sample is transported under controlled, monitored conditions to NPL's NABL accredited under ISO 15189:2022 laboratory for processing.

→ Your digital report is delivered securely to your phone or email, along with access to download and share it as needed.

When to See a Doctor

•  Burning sensation during urination or increased urinary frequency

•  Fever, chills, or flank pain with urinary symptoms — may suggest kidney involvement

•  Recurrent UTIs

•  UTI symptoms not improving with initial treatment

•  Confusion in an older adult, particularly with other UTI risk factors present