Health For Everone Q&A Women’s Health

Is it normal for underwear to turn yellow after being worn for a day?

Asked by:Elena

Asked on:Apr 13, 2026 06:49 AM

Answers:1 Views:429
  • Henrietta Henrietta

    Apr 13, 2026

    Yellowing of underwear that has been worn for a day may be a normal phenomenon, or it may be related to residual secretions, urinary system problems or gynecological inflammation.

    During daily activities, women's vaginal secretions, men's prostate fluid or sweat may contaminate underwear. Especially when you sweat a lot in summer, the proteins in the secretions are likely to turn yellow after oxidation. The fibers of cotton underwear will naturally turn yellow as they age. This situation can be improved by timely replacement and the use of underwear-specific detergents.

    If the discharge is accompanied by odor, itching or painful urination, you need to be alert to pathological causes. Women may have yellow leucorrhea due to bacterial vaginosis, and men with chronic prostatitis may cause increased urethral discharge. Diabetic patients have high sugar content in their urine and are more likely to oxidize and turn yellow after contaminating their underwear. In this case, it is recommended to observe for 2-3 days. If the abnormality persists, you need to see a doctor to check the leucorrhea or urine routine.

    Choosing light-colored cotton underwear can help detect abnormal secretions early and avoid using bleach to avoid irritating the skin of the private parts. After changing underwear every day, it is recommended to soak it in hot water above 60℃ for 10 minutes before washing it, which can effectively kill most pathogenic bacteria. In elderly women, the composition of secretions changes due to the decrease in estrogen, so they can appropriately use weak acidic care solutions to clean the vulva.