Wearing clean underwear every day is a key part of personal hygiene. It helps limit body odor, reduce skin irritation, and prevent infections by removing trapped sweat and bacteria. Medical sources especially recommend doing so for vaginal health.

The fabric choice also matters. Cotton is widely regarded as ideal for daily underwear because it breathes well, absorbs moisture, and is gentle on the skin. In contrast, many synthetic fabrics (like nylon or polyester) can trap heat and moisture, which may increase the risk of discomfort, irritation, or yeast infections.

Fit and laundering practices are just as important. Avoid tight underwear that causes friction or limits airflow, which can contribute to rashes or infections. Use mild, fragrance‑free soap and skip harsh detergents or fabric softeners, which can leave irritating residues. After washing, dry underwear in fresh air or sunlight, since sunlight helps disinfect fabric naturally and damp, enclosed environments can promote bacterial growth.

A small decorative bow on the front of many women’s underwear actually has historical roots. Before elastic waistbands became common, underwear often had a ribbon or drawstring, and the bow indicated where the garment was tied. Over time, the bow became largely decorative, but it also still helps users distinguish front from back when dressing, especially in dim light.