CDC advises daily sock changes to cut kids' fungal infection risk

Key facts

The CDC's foot hygiene guidance, updated in March 2025, instructs that children and adults should change their socks at least once a day to prevent fungal and bacterial infections. Tinea pedis, the fungal infection commonly called athlete's foot, affects up to 1 in 4 people in the United States and grows readily in the warm, moist environment created when a damp sock stays on an active child's foot. For children who play sports or spend time in communal spaces such as pools and locker rooms, the risk of picking up the infection is even higher without consistent sock hygiene.

• CDC recommendation: change socks at least once daily; more often if feet perspire or get wet.
• Tinea pedis prevalence: up to 1 in 4 people in the United States, including children and adolescents.
• Primary risk factors in kids: tight or closed shoes, sweaty feet, shared surfaces in gyms and pools.
• Cotton socks help by absorbing moisture and limiting the damp conditions fungi need to multiply.

What it means for parents

The practical takeaway is straightforward: treat a sock change the same way you treat hand washing -- build it into the routine. The most useful checkpoints are after school, after any outdoor play or organized sport, and after a bath or shower. KidsHealth, published by the Nemours Foundation, specifically advises parents to change socks regularly when feet get sweaty and to avoid fabrics that trap moisture against the skin.

For children who are sensory-sensitive or tend to resist clothing changes, it helps to keep the barrier low. Having fresh socks within reach -- and choosing seamless, soft options that do not irritate the toe seam -- removes one common reason kids push back on changing. A child who finds socks comfortable is less likely to argue about swapping them after soccer practice.

Background and context

Athlete's foot is not only an adult problem. Nationwide Children's Hospital notes that the fungus spreads through direct contact with contaminated surfaces and clothing, including shared socks, towels, and locker room floors. Children who participate in team sports are frequently exposed in exactly those environments. The infection typically appears between the toes as red, flaky, or cracked skin that itches or burns, though it can spread to the sole and toenails if untreated.

From a materials standpoint, the Pediatric Group recommends cotton socks specifically because cotton absorbs perspiration and keeps feet drier between changes. The StatPearls clinical reference published by NCBI supports that recommendation, noting moisture-wicking or absorbent fabrics are a first-line preventive measure against tinea pedis. For highly active children, the Pediatric Group goes further: change socks twice a day, rinsing and drying feet each time. That guidance applies especially during summer months, when heat accelerates moisture buildup inside closed footwear.

Takeaway

A daily sock change is one of the lowest-effort hygiene habits parents can establish, yet the CDC lists it alongside toenail trimming and daily foot washing as a core step in preventing the fungal infections that affect millions of children each year. For families building that routine, having a generous supply of soft, breathable cotton socks on hand makes the habit easier to maintain. SUNBVE's combed cotton crew socks feature a seamless toe that reduces skin friction, which matters especially for children sensitive to seam pressure at the end of a long school or sport day.