Urine Culture
Also known as: Urine C/S, Urine culture and sensitivity, urine culture test, peshab ka culture, urine C/S
Grows bacteria from a urine sample to show whether there is a urinary tract infection (UTI), which germ is causing it, and which antibiotics will work (sensitivity).
Why it's ordered
Symptoms of UTI such as burning, frequent urination or fever, repeated UTIs, UTIs in men, children or pregnancy, and when treatment has not worked.
Preparation
Give a clean-catch midstream sample in a sterile container: wash hands and the genital area, pass the first part of the urine into the toilet, then collect the middle part. Give the sample before starting antibiotics if possible, and deliver it to the lab within 2 hours (or keep it in a fridge).
Typical adult values
| No infection | No growth, or no significant growth |
|---|---|
| Suggests infection | usually 100,000 (10⁵) CFU/mL or more of one type of bacteria; lower counts can matter with symptoms |
Ranges vary between labs and methods. Always use the range printed on your report.
If it's positive / reactive
A positive culture names the bacteria and lists which antibiotics it is sensitive or resistant to, so your doctor can choose the right one. Results usually take 2–3 days.
Good to know
'Mixed growth' usually means the sample was contaminated and should be repeated. Bacteria in the urine without symptoms usually do not need antibiotics, except in pregnancy and some other cases. Antibiotic resistance is common in Pakistan, so taking antibiotics without a culture can make treatment harder.
Common questions
How do I give a urine sample for culture?
Give a clean-catch midstream sample in a sterile container, before starting antibiotics if possible, and deliver it to the lab within 2 hours.
What does 'mixed growth' mean?
'Mixed growth' usually means the sample was contaminated and should be repeated.
How long does a urine culture take?
Results usually take 2–3 days.
Do bacteria in urine always need antibiotics?
No. Bacteria in the urine without symptoms usually do not need antibiotics, except in pregnancy and some other cases.