Pregnancy belly itch may be caused by poor skin elasticity, higher estrogen secretion, allergies, herpes and other factors. 1. Poor skin elasticity: women in the middle to late pregnancy, the uterus continues to grow, resulting in the abdominal wall of the skin tension becomes greater, the skin’s elastic fibers break, there may be itchy belly symptoms. 2. Increased estrogen secretion: After pregnancy, the estrogen in the body is increasing, stimulating the skin, may produce itching symptoms, is a normal phenomenon, does not require special treatment, it is recommended not to scratch, to avoid the symptoms continue to worsen. 3. Allergy: eczema or dermatitis of the skin can also lead to pregnancy belly itching, it is recommended to timely diagnosis and treatment through anti-allergy drugs, but pay attention to the correct use of drugs to avoid the impact on the fetus. 4. Herpes: women are prone to herpes infection during pregnancy, inducing belly itching. In addition to the above reasons, there may be other reasons for itchy belly, it is recommended that women during pregnancy, the symptoms of itchy belly, do not scratch, timely diagnosis of the cause of itching to the hospital, safe treatment to improve the symptoms of itching.