Changing underwear every day may seem basic, yet many people quietly skip this essential hygiene habit, unknowingly risking irritation or infection.

Studies show that a typical pair of underwear contains traces of bacteria and even fecal residue, making daily swaps more than just a cleanliness issue.

Young adults are especially prone to stretching wear-time, with surveys revealing that half of Gen Z and a quarter of millennials regularly go more than 24 hours in the same pair.

Experts warn that this behavior carries real health risks. Bacteria, yeast, and moisture build up, creating conditions for skin irritation, rashes, yeast infections, or bacterial imbalances.

Men and women are both vulnerable. Women may develop yeast infections or bacterial vaginosis, while men risk jock itch, an itchy fungal rash affecting the groin and thighs. Daily changes reduce these risks significantly.

Doctors emphasize changing underwear at least once every 24 hours, and more often during intense activity or hot, humid conditions. Paying attention to early warning signs and practicing consistent hygiene protects skin health and prevents complications.