The causes of sudden itchy body are dry skin, internal diseases, skin diseases, living environment factors and other conditions.
1. Dry skin: the skin changes accordingly with age, the hydration capacity of the stratum corneum decreases, so that the skin surface lacks moisturizing and becomes dry. Excessive bathing, winter dryness, hot water scalding, etc. can aggravate skin dryness, thus causing itching.
2. Internal diseases: such as biliary cirrhosis, renal insufficiency, hepatic insufficiency, urea retention, diabetes mellitus, certain malignant tumors can be accompanied by generalized itching.
3. Skin diseases: such as contact dermatitis, eczema, atopic dermatitis, drug rash, urticaria, papular urticaria, etc., can cause itching.
4. Environmental factors: temperature changes, wind, sun, dry air or excessive humidity, etc., can cause skin itching.
Suddenly itchy, persistent can not be relieved, need to be guided by the doctor to improve the relevant examination to clarify the diagnosis, and need to standardize the treatment, so as not to delay the condition.