Inner thigh erythema
Introduction
Introduction The erythema inside the thigh is common in the femoral hernia. Femoral hernia refers to skin dysentery that occurs in the human scrotum and groin. This Dermatomycosis caused by Dermatomyces infection mainly occurs in the thigh (both sides of the thigh). A shareholder. This kind of rickets can develop to the perineum, perianal and buttocks, so it has the name of "female femoral sputum". The main symptom is local itching. The disease is prone to recurrence. Mostly due to contact with patients with sputum or through cats, dogs, etc., or indirectly through clothing, or suffering from enough sputum, due to spread and spread. In the summer season, the climate is hot and humid, and the human body is sweaty, especially in the stock. If you don't take a shower in time, or wear a lot of sweat in your tight underwear, you can easily get the disease. In addition, patients with diabetes, excessive vaginal discharge, and long-term oral or topical application of a large number of broad-spectrum antibiotics or corticosteroids are also susceptible to femoral hernia. In terms of incidence, mainly young people, more men than women. The disease occurs mostly in summer, and the humid or hot climate often exacerbates the condition and relieves or heals in winter.
Cause
Cause
The main pathogens of the femoral hernia are Trichophyton rubrum and Trichophyton mentagrophytes. Flocculous epidermis has been a common pathogen of femoral hernia in the past, but it has been less in recent years. Other pathogens that can cause body lice can also become the cause of femoral hernia, but the proportion is small. Chinese medicine believes that sweating for a long time, caused by external wind and evil.
Examine
an examination
Related inspection
Skin color skin elasticity check
The femoral hernia is a skin disease that occurs in the thigh. Sometimes it can also affect the perineum, pubic lice, perianal, buttocks, scrotum folds, etc. Itching is severe. Due to scratching, the patient may have secondary dermatitis and lichenification. Or secondary infection.
feature:
(1) At the beginning of the femoral hernia, the erythema with clear edges and slightly bulging gradually expands, and there is debris on it, gradually turning from red to brown or skin tone.
(2) The center of the lesion gradually heals automatically and develops to the surrounding area. The inflammation of the edge of the erythema is more obvious. There may be rashes, blisters, suede, and even erosion, forming a ring shape.
(3) The temporary pigmentation is left behind and the symptoms of itching are severe.
At the beginning of the femoral hernia, flushing and small papules appeared on the inner side of the femoral sac near the scrotum, and then a small piece of white scales formed on the top of the papule, and the rash gradually spread to the periphery with clear boundaries. During the onset, pimples, blisters and scales can occur at the same time, occasionally pustules. The individual conscious itch is very different. When it is severe, it is unbearable and it is not itch. It is often found to be mossy with pigmentation. Skin lesions can also be extended to the lower abdomen, perineum and buttocks. The scrotum and penis skin may also be involved.
The condition is closely related to the season. The summer is easy to be aggravated and the itch is noticeable. In winter, it can be naturally relieved and the condition is stable. If the disease is not treated in time, it can be delayed for a long time.
The diagnosis of typical femoral hernia is not difficult, mainly based on the symmetrical or unilateral nucleus of the genital tract, clear boundary inflammatory lesions, disseminated papules, blisters, scales on the edges, direct scaling of scaly and blisters The fungus can be detected, and the positive rate of microscopic examination is very high.
Diagnosis
Differential diagnosis
Differential diagnosis of erythema inside the thigh:
Diagnosing the femoral hernia is not difficult, but it should be discreetly identified with some skin diseases, otherwise treatment is difficult to achieve. Skin diseases that are easily confused with femoral hernia are:
1, seborrheic dermatitis: sometimes can also invade the genital area, the rash is pale red spots, there is desquamation, some are ring-shaped, the boundary is clear, but the direct microscopic examination of fungi is negative.
2, red sputum: skin disease caused by a coryneform bacillus, common in the armpits, thighs, etc., the skin of the lesion is brick red, no inflammatory ring at the edge, no itching, direct microscopic examination of fungi is negative.
3, psoriasis: commonly known as psoriasis, can invade the thigh, showing ring or plaque erythema, generally thick surface of the scales, other parts of the body can also have the same rash.
4. Scrotal eczema and dermatitis: The lesions are mainly mossy or eczema-like changes, the edges are unclear, the center has no self-healing tendency, the itch is significant, and the development of skin lesions is not closely related to the season. It should be noted that the femoral hernia is prone to eczema-like changes after intense rubbing, hot water scalding or topical irritant drugs. The course of the disease is repeated and it is more difficult to treat.
5, vitamin B2 deficiency: is due to the lack of vitamin B2 (riboflavin) in the skin caused by skin, scrotum and oral syndrome, mainly scrotal inflammation, began to appear diffuse red patches of scrotum, clear boundaries, margins Slightly higher than the leather surface, covered with grayish white scales or brownish black thick enamel, scaly bacteria negative. At the same time, combined with glossitis and angular cheilitis, there is a tendency of collective disease in the same food unit.
