Is it normal to smell musty down there?
Mostly.Normal for most people
A mild musty smell from your groin or genitals can be normal, especially after sweating or being in damp, tight clothing. A new or persistent strong odor, especially with itching, pain, or unusual discharge, is worth getting checked.
Your groin has sweat glands, and warmth and moisture can leave a musty smell. That doesn’t automatically mean you’re unclean or that anything is wrong. Gently washing the outside and changing out of sweaty or damp clothes can help; skip scented products and, if you have a vulva, don’t douche.
If the odor is strong, new, or lingering—or comes with itching, pain, sores, or unusual discharge—get it checked, since an infection or another issue may be the cause.