Itchy body of pregnant women sleeping at night is usually mainly seen in pathological causes such as allergy, cholestasis, pruritus and some physiological causes: 1. Allergy: it may be caused by consuming foods that cause allergy, such as seafood, mangoes and spicy and stimulating foods, or the home environment is not clean, pajamas, bedding and sheets are not hygienic, and the skin is exposed to dust, pollen, animal fur, chemical substances, etc., causing eczema, urticaria and other allergic diseases, and then the symptoms of itchy body skin; 2, cholestasis: may be too high bile acid, which induces itchy skin; 3, pruritus: related to too dry skin, high local environmental temperature, dry environment, it is recommended to sunbathe bedding regularly and use mild non-stimulating moisturizing creams externally; 4, physiological phenomenon: mostly seen in late pregnancy, as the body begins to grow a lot of stretch marks, the The skin will stretch along with the subcutaneous tissues, such as fat and muscle, and the connective tissue of the dermis will be damaged, manifesting as slight itching. It is more easily perceived due to increased sensitivity at night.