The diagnosis can sometimes be made on clinical grounds but special testing might be required in certain patients.
The skin in the genital area and groins is warm and moist, fungal infections can grow tremendously quickly and become quite a widespread rash in these areas.
The fungus can arise from something very simple such as athletes foot. Sometimes a fungal infection in the groin can look like eczema or psoriasis and is often treated by doctors mistakenly for these conditions.
The treatments for eczema and psoriasis do not cure fungal infection and it is common for the patients with a fungal infection to have been treated for a long time without any real benefit until someone makes the correct diagnosis.
Any rash in the genital area should be diagnosed urgently to give the best possible outcome.
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by Dr John Ashworth