Overview

STI urine testing uses first-catch urine for NAAT detection of chlamydia and gonorrhea. It is convenient and less invasive for many patients.

What it detects

Chlamydia and gonorrhea nucleic acid.

Sample type

First-catch urine.

When it may be appropriate

Routine screening, discharge or urinary symptoms.

Window period considerations

Can detect infection relatively early, but very recent exposure may need repeat testing.

Test limitations

Does not detect all STIs; extragenital infections may require swabs.

Interpretation basics

Positive results support infection; negative results depend on timing and site.

Follow-up recommendations

Treat positive results and consider broader testing if symptoms persist.

Key points

  • Non-invasive option
  • Detects chlamydia/gonorrhea
  • May miss extragenital infection
  • Convenient screening

When to seek care

  • Routine screening
  • Discharge or burning
  • Partner diagnosis