What Causes Itching Under the Thighs?

Some people experience itching in the groin area, which is a common symptom. This itching is usually caused by skin diseases, possibly due to tinea cruris. It is recommended to consult a doctor for a diagnosis and treatment. In the meantime, it is important to avoid keeping the groin skin damp, bathe regularly, change underwear frequently, maintain personal hygiene, and avoid spicy foods like chili peppers. Eating vegetables and fruits rich in vitamins is recommended. Avoid scratching the skin in the groin area. Let's delve into the issue further.

Itching in the groin area may be caused by tinea cruris, a fungal infection of the skin in the groin and genital areas, also known as "jock itch". This condition is more common in the summer and autumn seasons. People who are obese, sweat excessively, have diabetes, chronic debilitating diseases, or take corticosteroid or immunosuppressive drugs for a long time are more susceptible to this condition.

Damp-heat pathogens invade the skin and meridians through the channels, leading to the formation of worms over time. Alternatively, improper lifestyle habits or exposure to contagious toxins can cause stagnation of damp-heat and toxins in the skin, leading to recurrent and persistent itching. Western medicine believes that tinea corporis and tinea cruris are caused by fungal infections, mainly including Trichophyton rubrum, Trichophyton mentagrophytes, Trichophyton verrucosum, and Microsporum canis. These infections can occur through direct contact, indirect contact, or self-infection (such as hand and foot tinea).

It is important to keep the groin area dry. After showering, apply powder such as talcum powder to the area. Avoid wearing tight or thick underwear, and choose ventilated and breathable options. Since tinea cruris can often be transmitted from hand or foot tinea, it is crucial to actively treat these conditions.

1. The occurrence of tinea cruris is related to dampness and excessive sweating in the local skin, which favors the growth and reproduction of pathogenic fungi. It is more common in summer, and certain occupations, such as truck drivers, may have a higher incidence rate. Maintaining clean and dry skin is crucial.

2. Medications such as glucocorticoid preparations and immunosuppressants can affect the body's resistance, and long-term use may increase the risk of developing this condition. Therefore, it is advisable to avoid excessive or inappropriate use.

3. People with diabetes have poor skin resistance and are prone to secondary infectious skin diseases, often with recurrent and persistent skin lesions. It is important to pay attention to differential diagnosis and actively treat the underlying disease.

4. Not all rashes in the groin area are caused by tinea cruris. It is essential to distinguish them from other conditions such as eczema to avoid misdiagnosis and delayed treatment.