What exactly happens
The skin in the groin, under the breasts, in the abdominal fold, and in other areas where skin rubs against skin is a unique environment. It is warm, moist, and has little exposure to air. These are exactly the conditions in which fungi thrive.
The fungus most commonly responsible for infections in skin folds is Candida albicans, a yeast that is naturally present on the skin and in the body. Normally, the skin’s microbiome keeps Candida in check. Beneficial bacteria occupy the space, produce substances that inhibit the growth of Candida, and maintain the skin’s pH at a level that is unfavorable to the fungus.
But when that balance is disrupted, Candida has the opportunity to overgrow. The skin becomes red, warm, and itchy. Small blisters or cracks may appear. The edges of the affected area are sometimes lighter in color than the center. In more severe infections, the skin is raw and painful, especially when moving.
In the groin area, this condition is also known as tinea cruris, an infection related to athlete’s foot and caused by the same family of fungi. It spreads through direct contact and via textiles. People with athlete’s foot are at increased risk of transferring the fungus to the groin area via their hands or a towel.
Who is affected by this
Skin fungus in skin folds affects more people than you might think. People who are overweight have more and deeper skin folds, which increases the likelihood of moist, warm conditions. People who sweat a lot are at greater risk, especially during hot weather or during intense exercise. People with diabetes have elevated blood sugar levels, which provide an ideal breeding ground for fungi.
But even people who don’t have any of these risk factors can develop a fungal infection in skin folds. A week of warm weather, a busy period with little attention paid to skin care, or a course of antibiotics that disrupts the microbiome—any of these can be enough. Older adults are also a high-risk group. As we age, the skin becomes thinner, the microbiome becomes less diverse, and the skin becomes less able to protect itself. Skin folds that previously caused no problems may become problematic in later life.
Why It Keeps Coming Back
The pattern of skin fungus in skin folds is the same as that of athlete’s foot. An antifungal cream, a few weeks of treatment, and the infection clears up. And then, a month later or the following summer, it’s back again. The reason is the same: the treatment tackles the fungus but does not restore the microbiome. And without a healthy, resilient microbiome, the skin in the folds is vulnerable to future exposure.
Traditional antifungal creams do what they promise: they kill the fungus. But they also kill some of the beneficial microbiota, leaving the protective layer thinner after treatment than it was before. Paradoxically, once treatment stops, the skin is sometimes more vulnerable than it was before.
How to Go About It
An active infection requires antifungal treatment, which must be continued for a sufficiently long period. Many people stop treatment as soon as the symptoms disappear, but the fungus may still be present even before the skin looks normal. Ask your pharmacist for advice on how long you should continue treatment in your specific situation.
At the same time, restoring the microbiome is essential, both during and after treatment. YUN FNG supports the skin’s microbiome, even in sensitive areas such as the groin and skin folds. The live probiotics strengthen the protective bacterial layer and make the environment less hospitable to fungi. This reduces the risk of recurrence.
On a practical level, there are also a number of things that make a difference. Wear breathable clothing made from natural materials, such as cotton or linen, and avoid tight synthetic clothing that traps heat and moisture. Thoroughly dry the skin folds after showering, even if it takes a little effort. Change your underwear daily and avoid wearing clothes again that you’ve sweated in.
If you have both athlete’s foot and a fungal infection in your groin, treat both at the same time. Athlete’s foot and groin fungal infections are often caused by the same fungus, and it’s easy for the infection to spread from one area to the other if you don’t treat both.
The Conversation Most People Don’t Have
Skin fungus in skin folds is a medical condition, not a hygiene issue. It has nothing to do with how clean you are. It has to do with the conditions on and in your skin, and with the state of your microbiome.
If you suffer from recurring fungal infections in skin folds, talk to your pharmacist. They can help you find the right combination of treatment and prevention, without judgment and without beating around the bush. Because a problem you don’t discuss is a problem you won’t solve.
