Itchy body in 6 months of pregnancy may be caused by cholestasis of pregnancy syndrome, allergic factors, eczema and other factors. 1. Cholestasis of pregnancy syndrome: it may be related to factors such as increased estrogen and heredity, the main clinical manifestation is itchy skin during pregnancy, and some patients may also have symptoms such as jaundice, nausea, vomiting and poor appetite. 2. Allergic factors: for example, contact with allergenic substances or consumption of allergenic food may trigger an allergic reaction, which will lead to localized itching of the skin, which may be accompanied by redness, burning pain and other symptoms. 3. Eczema: related to a variety of factors, such as environmental factors, mental stress, excessive fatigue, etc., may lead to localized skin eczema, will cause itching, itching is more intense, may also be accompanied by redness, swelling, pain, oozing and other symptoms. Itchy body in 6 months of pregnancy may also be other reasons, if there are other obvious abnormal manifestations, it is recommended that pregnant women go to the hospital for appropriate examination and treatment to avoid adverse effects.