The Complete Guide to Preventing Skin Infections in Brazilian Jiu-Jitsu

Brazilian Jiu-Jitsu is one of the most rewarding sports you can train. It builds confidence, improves fitness, sharpens your mind, and creates friendships that often last a lifetime.

But there's one part of training that nobody enjoys talking about—skin infections.

If you've been training for any length of time, you've probably heard someone say, "I'm taking a week off because I've got ringworm." Maybe you've seen a training partner dealing with staph, or you've wondered whether that red patch on your arm is just mat burn or something more serious.

The good news is that most skin infections in Brazilian Jiu-Jitsu are preventable.

Good hygiene habits won't guarantee you'll never pick up an infection, but they can dramatically reduce your risk while helping protect your teammates as well.

This guide covers everything you need to know to help prevent skin infections in BJJ, from what causes them to the simple daily habits that can keep you healthy and on the mats.

Why Are Skin Infections So Common in BJJ?

Think about what happens during a typical class.

You're sweating.

Your training partner is sweating.

You're sharing mats with dozens of other people.

There's constant skin-to-skin contact.

Minor cuts and abrasions happen all the time.

It's the perfect environment for bacteria and fungi to spread if good hygiene isn't taken seriously.

The problem isn't Brazilian Jiu-Jitsu itself. The problem is that microorganisms love warm, damp environments—and unfortunately, that's exactly what sweaty training gear and skin provide.

The Most Common Skin Infections in BJJ

Ringworm

Despite its name, ringworm isn't caused by a worm.

It's a fungal infection that appears as a circular, red rash that often has a raised edge and can become itchy.

Ringworm spreads through direct contact with infected skin, contaminated mats, towels, clothing, and even gym bags.

If left untreated, it spreads quickly.

Staph Infection

Staphylococcus bacteria naturally live on many people's skin without causing problems.

However, if the bacteria enter through small cuts or abrasions, they can cause painful infections.

Signs may include:

• Red, swollen skin

• Pain or tenderness

• Warmth around the area

• Pus-filled bumps

• Fever in more serious cases

Staph infections should never be ignored. Early medical treatment is important.

Impetigo

Impetigo is another bacterial skin infection that's especially contagious.

It often starts as small blisters before forming honey-coloured crusts.

Children who train are particularly susceptible because they often have more skin-to-skin contact and minor scratches.

Folliculitis

Folliculitis is inflammation of the hair follicles, often caused by bacteria entering irritated skin.

It looks similar to small pimples and commonly appears after sweating heavily.

How Skin Infections Spread

Most infections spread because of one or more of these reasons:

• Training with an active infection

• Poor personal hygiene

• Dirty training gear

• Unclean mats

• Sharing towels or razors

• Staying in sweaty clothes after class

• Open cuts that aren't covered

Fortunately, every one of these risk factors can be reduced.

10 Habits That Help Prevent Skin Infections in BJJ

1. Shower As Soon As Possible

The sooner you wash after training, the better.

Sweat, bacteria and fungi all thrive when left on the skin.

Use a quality body wash and clean every area thoroughly—especially your neck, underarms, hands, feet and anywhere that spent time against the mats.

2. Wash Your Gi and Rash Guard After Every Session

Never leave sweaty gear sitting in your car overnight.

Even one missed wash creates an environment where bacteria and fungi can multiply.

Your gi, rash guard, shorts, belt, and knee sleeves should all be cleaned regularly according to the manufacturer's instructions.

3. Keep Your Gym Bag Clean

Many people wash their gi but completely forget about the bag carrying it.

Your gym bag collects sweat, moisture and bacteria every single week.

Empty it regularly, let it dry completely, and disinfect it often.

4. Clean Your Equipment

Don't forget items like:

• Headgear

• Shin guards

• Knee braces

• Mouthguard cases

• Water bottles

These all come into contact with bacteria more often than people realise.

5. Cover Cuts and Scratches

Even tiny cuts create an entry point for bacteria.

Before training:

• Clean the wound

• Apply antiseptic if needed

• Cover it securely

If the cut can't be properly covered, it may be best to skip training until it has healed.

6. Never Train With a Suspicious Rash

This is one of the biggest mistakes people make.

If you're unsure what a rash is, don't gamble with your teammates' health.

See a healthcare professional, get a diagnosis, and return only when it's safe to train.

Your teammates will appreciate your honesty.

7. Don't Share Personal Items

Avoid sharing:

• Towels

• Soap

• Razors

• Protective gear

• Clothing

It seems obvious, but infections are often spread this way.

8. Wear Clean Clothing Every Session

Fresh training gear isn't just about smelling good.

Clean clothing reduces the amount of bacteria and fungi sitting against your skin during training.

9. Check Your Skin Regularly

Spend a minute every few days checking your:

• Arms

• Neck

• Feet

• Legs

• Face

• Behind the knees

The earlier you spot something unusual, the easier it is to deal with.

10. Support Good Gym Hygiene

A clean academy benefits everyone.

If you own or coach at a gym:

• Clean mats thoroughly every day.

• Encourage students to report skin issues.

• Promote showering after class.

• Make hygiene products easily available.

• Create a culture where health comes before ego.

Building a Simple Post-Training Hygiene Routine

You don't need an hour-long skincare routine.

A few consistent habits make all the difference.

After every session:

✔ Shower as soon as you can.

✔ Wash thoroughly with a quality cleanser.

✔ Change into clean clothes.

✔ Hang your gear to air out before washing.

✔ Wash your training gear.

✔ Clean your equipment.

✔ Check your skin for anything unusual.

Consistency beats perfection every time.

Where kleen. Fits Into Your Routine

At kleen., we created our products with active people in mind.

Whether you train Brazilian Jiu-Jitsu, MMA, wrestling, judo or spend hours in the gym each week, your skin goes through more than most.

Our naturally inspired hygiene range is designed to help you build healthy habits before, during and after training.

Products like our Activated Charcoal Body Wash, Quick Cleanse Spray, Gear Spray and Dry Shower Foam make it easier to stay fresh whether you're heading home after class or travelling between sessions.

They're not a replacement for good hygiene—they're part of a routine that helps you take better care of yourself and those you train with.

Final Thoughts

No one enjoys missing training because of a skin infection.

The encouraging news is that preventing most common BJJ skin infections doesn't require complicated routines or expensive treatments.

It comes down to consistency.

Shower after training.

Wash your gear.

Keep your equipment clean.

Pay attention to your skin.

And if something doesn't look right, sit out and get it checked.

Looking after your health isn't just about protecting yourself—it's about protecting everyone who shares the mats with you.

Train hard. Train smart. Stay kleen.