All About Tinea Cruris And Treatments

Tinea cruris is a kind of a fungal infection of the groin. This condition also affects the adjacent skin. This is a very common condition to occur. In tinea cruris there is fungal growth on the skin, however all the skin rashes in the groin area are not tinea cruris. The thigh skin and the anus area are also affected along with the groin area. The most common type of dermatophytic agent responsible for tinea cruris is the T rubrum followed by T tonsurans and T mentagrophytes.


-friction caused by clothes along with the presence of moisture present around the groin area can result in tinea cruris.

tinea cruris can also occur when any kind of wet clothing is kept on the body for a long time. For example, sports wear


-the main symptom of tinea cruris is intense itching in and around the groin area.

-the skin might abnormally light or dark.

-red patches which may be raised and scaly in nature may be present in the affected areas.

-the affected erythematous area appears symmetric

-blister formation can take place which oozes may be oozing in nature.

-the red scaly patches in most cases are very well defined

-the borders of these patches appear darker and normal skin color tone may be seen at the center.

-when tinea cruris is of a sudden onset or acute in nature, the rash area appears moist


Most prone individuals are:

-those who wear tight fitting clothes for a longer period


-with those suffering from any kind of underlying systemic disease like diabetes mellitus

-obese individuals

-people who have an habit of sharing clothes with others

-people living in the tropical climate regions are most commonly affected


Differential diagnosis:


-contact dermatitis which can be either allergic or irritant





Microscopic examination of the affected area will determine the presence of any dermatophyte causing tinea cruris.

The microscopic examination starts with clearing the area with alcohol 70%

The sample needed for the examination is collected from the borders of the lesion. The scales which are collected are covered with a cover slip and examined under a microscope.



Since tinea cruris is a fungal infection, this condition is easily treated by an anti-fungal medication.

Generally the condition improves by the application of a topically applied anti-fungal medication like that of the imidazole family. If the condition does not improve with the topically applied agent then systemic medication like griseofulvin must be started.

Most doctors prefer a combined treatment of systemic and topical antifungal agents to cure tinea cruris.

If the condition recurs then it is considered a failure of the initial treatment and modifications in the treatment plan is a must.

After the condition improves after medication, efforts should be made to keep the affected area dry and moisture free. This can be done by wearing cotton clothing or by regular application of a mild powder in the groin area at least once a day.

If the patient appears overweight, efforts should be made to reduce the excess body weight by altering the diet. However recurrence of tinea cruris is quite common.

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