Trim toenails straight across after soaking feet in warm water for 10–15 minutes
Use a thick nail clipper or toenail nipper designed for hard nails
File the top surface of the nail to reduce thickness
Apply an over-the-counter antifungal treatment if fungus is suspected
Keep feet clean and dry
Wear breathable shoes and moisture-wicking socks
Disinfect nail tools after each use
Avoid tight shoes that press on the nails
See a podiatrist for professional thinning or trimming
Get medical treatment if the nail is painful, discolored, or worsening