How do you prevent inner thigh chafing when running?

Apply an anti-chafe balm or petroleum jelly to your inner thighs before every run, wear fitted compression or athletic shorts to stop skin-on-skin contact, choose moisture-wicking fabrics instead of cotton, and stay as dry as possible. Anti-chafing thigh bands also work well. If skin is already raw, let it heal before running again.

How to Prevent Inner Thigh Chafing When Running

Chubrun Running FAQ

How to Prevent Inner Thigh Chafing When Running

That raw, stinging burn is almost entirely preventable. Here's exactly how.

Quick Answer

Apply anti-chafe balm to your inner thighs before every run, wear fitted shorts to stop skin-on-skin contact, choose moisture-wicking fabric over cotton, and stay as dry as possible. Anti-chafing thigh bands work too. If skin is already raw, let it heal before running again.

Thigh chafing - that raw, stinging burn on the inner thighs - is one of the most common reasons bigger runners dread their next run. Good news: it's almost entirely preventable once you know the tricks, and it has nothing to do with doing anything wrong.

Why it happens

Chafing is friction plus moisture. When skin rubs against skin (or wet fabric) over thousands of strides, the surface breaks down and burns. It's just physics, and it happens to runners of every size - not a sign you're "not built for this."

The fixes that actually work

Anti-chafe balm. A stick balm (or plain petroleum jelly in a pinch) before every run creates a slick barrier. The single most effective fix.
Fitted shorts underneath. Compression or fitted shorts stop skin-on-skin contact entirely.
Moisture-wicking fabric. Cotton soaks up sweat and turns into sandpaper; synthetics stay drier and glide.
Stay dry. Reapply balm on longer runs; a little powder helps if you're prone to it.
Thigh bands or guards. Made exactly for this - great under dresses or shorts.