These fungi are known as dermatophytes and are distinctly different from yeasts. Jock itch is caused by fungi that have a predilection for human skin. Jock itch with hyperpigmentation (source: Samuel Freire da Silva, M.D.) Jock itch – Tinea cruris (source: Samuel Freire da Silva, M.D., atlasdermatologico) This is more likely to be worsened by vigorously scratching that leads to breaks in the skin which may then become infected with bacteria. In addition, tiny blisters form which may burst and ooze. Many people with jock itch report moisture in the affected area which has a must odor. Excessive scratching also contributes to it. The skin appears dark brown in color and this hyperpigmentation is usually irreversible. Darkeningĭarkening of the skin is more likely to occur with long term tinea cruris, particularly when treatment is delayed or the infection is recurrent. Sratching the area may cause sloughed off skin cells to fall off as tiny sand-like particles. The itch tends to worsen when the area is covered and during hot and humid weather. Itching is also quite pronounced with tinea cruris, hence the term jock itch. Usually the edge of the rash has a raised red border. However, in the groin region this typical appearance may not always be present. The skin at the center of the rash may be normal or dry and scaly. The rash, as described, is typically a red ring-like lesion. The signs and symptoms of jock itch include a rash, itching, hyperpigmentation and sometimes oozing of the skin. However, there is no actual parasitic worm involved in the infection. Jock itch like many fungal infections of the skin is due to a fungus that causes a red ring-like lesion on the skin which is said to resemble a curled worm. Other regional names for tinea cruris includes ‘ dhobi’s itch‘ in India because it is commonly seen among clothese washers (dhobis). Any person can develop jock itch, including children and women. Despite the term, tinea cruris (jock itch) does not only affect athletes or males for that matter. It is also known as groin ringworm, groin fungus and scrot rot. The term ‘jock itch’ is derived from this condition occurring frequently in athletes (also referred to colloquially as jocks) and that it presents with significant itching. Jock itch is a fungal infection of the groin area that is medically known as tinea cruris.
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