Seborrheic dermatitis of vulvar skin

Introduction to vulvar skin seborrheic dermatitis Vulvar skin seborrheic dermatitis is a superficial, chronic inflammatory skin disease that occurs on the basis of seborrhea and usually spreads from the head down to other areas rich in sebaceous glands, appearing as dark red or yellow-red patches. It is covered with greasy scales or suede with varying degrees of itching. basic knowledge The proportion of illness: 0.001% Susceptible people: no special people Mode of infection: non-infectious Complications: Esophageal candidiasis infection

Causes of genital skin seborrheic dermatitis

(1) Causes of the disease

The cause is still not fully understood, but it is believed that the disease may increase with the activity of sebaceous glands, resulting in increased sebum release or changes in its chemical composition, resulting in dysregulation of skin surface flora, which may be secondary to microbial infections: such as oval Pityrosporum, acne short-stick vaccine multiply, causing skin inflammation; increased secretion of sebaceous glands, especially fungal infections also play a role in the occurrence and development of this disease, genetic factors, changes in endocrine hormone levels, especially male hormone levels Neuroendocrine dysfunction, mental factors, gastrointestinal dysfunction, vitamin B deficiency, eating habits, etc. are also related to the development of this disease.

(two) pathogenesis

Histopathological examination showed epidermal focal keratosis, occasional neutrophils in the epidermis, mild hypertrophy of the acanthosis, intra-orbital edema, and mild lymphocytic infiltration around the dermal vessels. Experimental findings of seborrheic dermatitis The patient's anti-microbial IgG antibody and P. ovale extract induce lower lymphocyte stimulation than normal people. These two factors promote the proliferation of these eosinophils and produce an inflammatory response.

Vulvar skin seborrheic dermatitis prevention

Pay attention to the law of life, adequate sleep, eat less fat and spicy spicy food, eat more vegetables, avoid hot water, soap stimulation, avoid local scratching, so as to avoid sebum secretion and worsen the condition.

Vulvar skin seborrheic dermatitis complications Complications Esophageal candidiasis

Often accompanied by Candida infection.

Vulvar skin seborrheic dermatitis symptoms Common symptoms Skin itching, scaly eczema, greasy scaly dry seborrheic

The lesions are good and bad, and the episodes are more frequent when the temperature is low. The main symptoms are local itching. The genital area mainly affects the groin, the pubis, the perineal folds, and the two hips. The lesions are characterized by diffuse erythema or suede with clear boundaries. Superficial greasy scales or yellow crusting, scattered or fused, due to friction, prone to erosion, exudation, cleft palate, eczema-like changes, psoriatic lesions may occur in chronic cases of genital area (dark red scaly thick spots Tablets, vulvar skin seborrheic dermatitis usually have other body sebum, hairy, sweaty parts of the skin at the same time, such as scalp, face, upper chest, interscapular region, armpit, umbilical fossa, anal and other parts Therefore, it is not difficult to diagnose, and the rash is slightly different in different parts.

Examination of vulvar skin seborrheic dermatitis

The secretions were examined microbiologically.

Histopathological examination.

Diagnosis and differentiation of vulvar skin seborrheic dermatitis

diagnosis

The diagnosis is mainly based on the yellow-red patches with greasy scales that occur in the sebum overflow site, symmetrically distributed, chronically passing, and varying degrees of itching.

Differential diagnosis

Should be identified with the following diseases:

Psoriasis

Wrinkles, psoriasis of the vulva mainly affects the groin, underarms, under the breast, perineum and other wrinkles, the lesions are clear and general erythema, no scales, due to local humidity, the surface of the frictional skin is wet and eczema-like Change, other parts of the patient's body such as the scalp, limbs often have psoriasis typical lesions at the same time: red plaques, covered with thick layers of silvery white scales, peeling off scales visible film phenomenon, light scratching film visible spotted bleeding, The scalp damage often spreads to the hairline, the hair is bundled, but does not fall off, most patients are heavy in winter and light in summer.

2. Rose pityriasis

Mainly occurs in the trunk, proximal to the extremities. The lower abdomen and groin can also be affected. Often a larger mother spot appears as an elliptical reddish or tan patch with a slightly elevated edge and a thin squama-like scale. Without greasy, the other parts of the body will appear like a rash. The long axis of the oval rash is consistent with the skin line and can heal itself.

3.

Often occurs in the groin, perineum, perianal, centered, inflammatory ring or semi-circular damage around the expansion, scales are not greasy, fungal microscopic examination can find hyphae or spores.

4. Eczema

Mainly affects both sides of the labia majora, vaginal discharge, perianal, a few waves of the labia minora and vestibule, with erythema, exudate, hypertrophy, desquamation, rash is pleomorphic, scales are not greasy, and finally lead to increased pigment, even There is a reduction in pigmentation, accompanied by itching.

5. Hemorrhoids

There are hair follicle papules, pustules, acne and other characteristic damage, sebum overflow, but no oily scales and scarring, common in young people.

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