Localized neurodermatitis

Localized neurodermatitis is also a relatively common skin disease. It is also called chronic simple lichen. It is a chronic skin disease that is more common in adults but not common in children. There are many causes, among which mental factors are the main inducing factors. If you are often nervous and have great mood swings, these are often the biggest inducements.

Causes of localized neurodermatitis 1. Mental factors are currently believed to be the main cause of this disease. Emotional fluctuations, excessive mental tension, anxiety, sudden changes in living environment, etc. can all aggravate the disease and cause it to recur. 2. Gastrointestinal dysfunction, endocrine system dysfunction, chronic lesion infection in the body, etc. may all be pathogenic factors. 3. Local irritation, such as friction caused by a hard collar, chemical stimulation, insect bites, sunlight, scratching, etc., can all induce the occurrence of this disease.

Clinical manifestations 1. When the disease first occurs, there is only an itchy sensation, but no primary skin lesions. Due to scratching and friction, flat papules ranging in size from millet to mung bean gradually appear on the skin. They are round or polygonal, hard and shiny, light red or normal skin color, and scattered. Due to paroxysmal severe itching, patients often scratch, and the papules gradually increase in number. Over time, they merge into flakes, become thickened and lichenified, and are manifested by deepening of skin wrinkles and raised skin ridges. The skin lesions become dark brown, dry, and have fine desquamation. The patchy lesions have clear borders, and there may be small flat papules at the edges, which are scattered and isolated. The number of skin lesions is variable and they may be solitary or widespread, of varying sizes and shapes.