There are red spots on the inner thighs that are not painful or itchy

Now that summer has arrived, the weather is relatively hot, the body's metabolism is vigorous, and it is easy to sweat, especially on the inner thighs, which can easily lead to erythema pruritus, tinea corporis, tinea cruris, erythrasma, pustulosis, tinea barbae, wind-heat sores, immersion sores, pus nest sores, etc. So what should you do if you have erythema on the inner thighs? What are some good tips? Let’s take a detailed look at them below, and I hope they will be helpful to my friends.

reason

The main pathogens of tinea cruris are Trichophyton rubrum and Trichophyton mentagrophytes. Epidermophyton floccosum was also a common pathogen of tinea cruris in the past, but has become less common in recent years. Some other pathogens that can cause tinea corporis can also be the pathogens of tinea cruris, but they account for a small proportion. Traditional Chinese medicine believes that prolonged sweating is caused by exogenous wind evil.

examine

Tinea cruris is a skin disease that often occurs on the thighs, and sometimes can affect the perineum, mons pubis, perianal area, buttocks, scrotal folds, etc. It causes severe itching, and due to scratching, patients may develop secondary dermatitis, lichenification, or secondary infection.

feature:

(1) When tinea cruris first occurs, it appears as a slightly raised, red patch with clear edges. It gradually expands and becomes covered with scale, which gradually changes from red to brown or skin color.

(2) The center of the lesion gradually heals automatically and spreads to the periphery. The inflammation at the edge of the erythema is more obvious, and there may be rashes, blisters, scabs, and even erosions on it, forming a ring.

(3) Temporary pigmentation will remain after healing, and the itching symptoms will be severe.

When tinea cruris first occurs, redness and small papules appear on the inner side of the thigh near the scrotum, followed by the formation of small white scales on top of the papules. The rash gradually spreads to the surrounding area with clear boundaries. During the progressive stage, papules, blisters, and scales may appear simultaneously at the edges, and pustules may occasionally be seen. The level of pruritus perceived by individuals varies greatly. In severe cases, the itch is unbearable, while in mild cases, there is no itch at all. Frequent scratching may cause lichenification and pigmentation. The lesions may also extend to the lower abdomen, perineum and buttocks. The skin of the scrotum and penis may also be involved.

The condition is closely related to the season. It tends to spread and worsen in summer, with significant itching, while it can be naturally relieved and the condition becomes stable in winter. If this disease is not treated in time, it may persist for a long time.

The diagnosis of typical tinea cruris is not difficult. It is mainly based on the presence of symmetrical or unilateral, clearly demarcated annular inflammatory lesions in the pubic and femoral areas, with disseminated papules, blisters, and scales at the edges. Direct microscopic examination of the scales and blisters can reveal fungi, and the positive rate of microscopic examination is very high.

Mitigation methods

Frequent moisture in the pubic and thigh area is one of the conditions for the onset of tinea cruris. People who are fat and sweat a lot are more likely to suffer from this disease than those who are thin. Therefore, the area should be kept dry. After bathing, you can sprinkle powder such as commercially available talcum powder locally. The underwear you wear on a daily basis should not be too tight or too thick, and should be breathable. Most cases of tinea cruris may be transmitted from tinea manuum and tinea pedis themselves. Therefore, it is important to actively cure tinea manuum, tinea pedis and other tinea diseases.

(1) Maintain self-discipline and refrain from having improper sexual relations with others. Do not use other people's underwear, panties and toiletries.

(2) Change underwear frequently, keep the vulva clean, and wash and dry clothes and quilts frequently.

(3) Reduce sweating and promote evaporation at the base of the thigh. Try to keep the perineum dry and wear loose fitting underwear that is not too tight.

(4) If you suffer from onychomycosis, tinea manuum, or tinea corporis, you should actively seek treatment to prevent the disease from being transmitted to the pubic area through your hands.

Be careful of jock itch during the rainy season: Beijing is rainy and humid in summer. In addition, more and more people like to wear tight pants, jeans, nylon underwear and tights, so more and more people are infected with jock itch. Doctors call for people to take preventive measures as the rainy season is a high-risk period for tinea cruris.