Itchy belly button

Introduction The navel itch may be neurodermatitis, or it may be itch disease, which is a neurological disease. Neurodermatitis is a localized cutaneous dysfunction skin disease called chronic simple moss. Traditional Chinese medicine calls it "psoriasis" and "collaring sores" because it is good for the neck, like the skin of a cow's collar. It is thick and firm and named as "Surgical Authentic": "Psoriasis, such as cattle collar Skin, stubborn must be grasped as dead wood." Clinical features of the skin moss, hypertrophy, rough itching, severe disease, repeated episodes of constant years of unhealed, easy to relapse.

Cause

The disease is caused by the seven emotions, the heart is endogenous, the spleen is hot and humid, and the lungs are affected by the wind and blood poisoning between the skin and the phlegm, which causes the skin to be blocked, and the blood deficiency and dryness cause the glory of the skin.

Comprehensively, the causes can be roughly divided into the following three types

1. Neuropsychiatric factors: Excessive excitement, depression, anxiety, horror or neurasthenia caused by emotional fluctuations, causing dysfunction of the cerebral cortex to cause peripheral nerve dysfunction. When stimulated, the skin is prone to reaction and mossy. Variety.

2, stimulating factors: such as drinking alcohol and coffee, such as hot stimulants, or taking some drugs acting on the nervous system and panty abrasion, scratching and other local stimuli are all incentives.

3, disease factors: digestive system diseases endocrine disorders, etc., is also an important incentive.

an examination

Related inspection

Abdominal skin examination skin smear microscopy

In the early stage of the disease, only intermittent itching of the affected part, especially at night, often caused by insomnia, scratching the skin, appearing light brown round or polygonal papules, smooth surface or covered with squama-like scales, dense integrated group with disease development, papules gradually merge In the form of tablets, the formation of Yingwu's moss-like changes at this time, the lesions are dry, thickened, and the skin lines are deep and interlaced, and the skin folds, showing a clear or polygonal shape. I have seen this young man in this disease.

Differential diagnosis

According to the clinical good site and typical moss-like damage, no blister, bursting itching, chronic passing, etc., can generally make a diagnosis. However, it must be differentiated from the following diseases:

1, chronic eczema: due to the emergence of moss, skin infiltration hypertrophy and itching need to be different from neurodermatitis. The difference is that chronic eczema is mostly caused by acute eczema, and there is a tendency to exude during the passage.

2, lichen planus: the same as neurodermatitis is a round or polygonal flat papules, consciously itching. The difference is that the former flat papules are larger than the latter, are purple-red, have a waxy luster, and can be seen in wicknam. The homomorphic response occurs in the forearm, the calf extension, the trunk, etc., in addition to mucosal damage (such as damage to the buccal mucosa and glans). Histopathology is specific.

3, skin amyloidosis: occurs in the calf neurodermatitis can be tumor-like, it is necessary to distinguish between the two. The skin lesions of the amyloidosis of the skin are sorghum to mung bean large tan brown hard papules, sometimes the rash is arranged along the dermatoglyph, and the histopathological amyloid deposition has characteristic changes.

4, psoriasis: chronic limited hypertrophic psoriasis occurs in the calf extension and scalp, similar to neurodermatitis, but the base of psoriatic lesions is light red or dark red infiltration, with silvery white scales, After peeling, there is a phenomenon of film and punctiform hemorrhage. Psoriasis is common in other parts of the body. The patient does not itch or mild itching. Histopathology has diagnostic value.

5, scrapie: more common in the elderly, often related to the season, skin lesions are secondary.

6, the primary skin amyloidosis: occurs in the calf stretch side, the skin lesions are high to the mung bean large round or semi-circular brown pimples, densely integrated with plaques without fusion, waxy luster, rough surface Inconsistent, the Congo red skin test was positive.

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