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How do you avoid staph and skin infections in no-gi?

Skin infections are the most common avoidable risk in no-gi grappling. Here is how to prevent staph and ringworm, spot the early signs, and what to do if exposed.

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Skin infections are not glamorous, but they are the single most common avoidable problem in grappling — far more so than any dramatic injury. The good news is that simple habits prevent nearly all of them. Here is what a beginner needs to know. (Our full hygiene standards go deeper, including what schools should enforce.)

How do you avoid staph and skin infections in no-gi?

Three habits prevent almost all of it: shower with soap as soon as possible after every session, wash your training kit after every single use (never re-wear it), and keep any cut or graze covered. Skin infections spread through skin-to-skin and skin-to-mat contact, so the goal is simply not to carry bacteria or fungus on or off the mat. This is the most common avoidable risk in grappling, and basic hygiene removes most of it — which is also why your clothing should be clean and snug, not loose.

What are the signs of ringworm or staph?

Ringworm shows up as a round, red, sometimes itchy patch with a clearer centre. Staph and other bacterial infections look like an angry red spot, boil, or pimple that is warm, swollen, or filled with pus, and that does not heal normally. Anything that looks like that, get checked by a doctor — and crucially, stay off the mats until it is treated and covered, so you do not pass it on. Looking after your skin is part of the broader picture of staying healthy in training.

What should I do if I or a training partner has a skin infection?

Stay home and get it treated — training through a skin infection is how an entire gym ends up with it. Tell your coach; they need to know, and a good one will thank you, not judge you. Do not return until a doctor clears it and it can be fully covered. If a partner trained with something visibly wrong, keep an eye on the area you were in contact with and wash thoroughly. This kind of honesty is exactly the culture a well-run school builds.

How clean should a no-gi gym be?

Visibly and consistently. The mats should be wiped down between sessions, the space should not smell, and there should be clear expectations that students train clean and stay home when sick. Mat hygiene is your single best proxy for whether a school takes the avoidable risks seriously — a dirty gym is a real reason to train somewhere else, and it is one of the green flags in how to find a good school.


The short version: shower after, wash your kit every time, cover cuts, and never train with a skin infection. Do that and the most common problem in grappling mostly disappears. More on overall safety: is no-gi safe? Or head back to the start hub.