What causes dermatitis?

Dermatitis is a very common skin disease in life. There are many causes of dermatitis. Bacterial infection, chemical agents and improper diet inside the body can cause the disease. We must pay attention to the prevention and treatment of diseases in our lives. There are also some patients who have genetic factors that cause dermatitis, and these patients need to do a good job of prevention. Let’s take a look at what causes dermatitis?

Dermatitis may occur at different stages. Infants, children and adults are all at high risk of the disease. When the disease occurs, erythema will appear on the patient's body, accompanied by severe itching, and even local infection may occur in severe cases.

What causes dermatitis? Eczema and dermatitis are often used synonymously. They refer to a type of skin inflammation that indicates an allergic reaction of the skin to chemicals, proteins, bacteria, fungi, dry climate, etc. These substances can come from the outside, such as detergents, or from the inside, such as seafood, medicines, etc. The causes of some eczema and dermatitis are unknown. People who suffer from eczema and dermatitis have an allergic constitution, which is inherited from their parents. It manifests itself as eczema, dermatitis and urticaria on the skin, allergic rhinitis in the nose, and allergic asthma in the trachea. Bad living habits. For example, if you often wash your face with too hot water, or use soap, facial cleansers and other skin cleansers too frequently, or do not pay attention to ultraviolet protection, these physical and chemical stimuli will change or damage the skin's protective barrier and vascular regulation function.

Atopic dermatitis in adolescents and adults after the age of 12 may develop from childhood or occur directly. The skin lesions are lichenoid, or acute or subacute eczematous, and are prone to occur in the elbows, popliteal fossa, limbs, and trunk. In addition to the above symptoms, the rash is often generalized dry papules or localized lichenified plaques. After scratching, there are blood scabs, scales and pigmentation, with less exudation. The skin is extensively affected and lichenified, which may form changes of "disseminated neurodermatitis". 60% to 70% may be accompanied by a history of bronchial asthma or allergic rhinitis.

The above content is an introduction to what causes dermatitis. I hope it can be of some help to you. There are many causes of dermatitis. We must do a good job of prevention in our lives to reduce the occurrence of the disease. When the disease unfortunately occurs, we also need to pay attention to the treatment of the disease to reduce the harm caused by the disease to the body.