Level 1: Causes and Precautions for Itchy Skin of Pregnant Women 1. Hormonal changes during pregnancy cause itchy skin. As hormone levels change during pregnancy, the skin of pregnant women will feel itchy. This is due to increased levels of estrogen and progesterone, which cause skin cells to proliferate and blood circulation to increase, making the skin more sensitive. 2. Itchy skin caused by allergies or infections Pregnant women’s immunity will be weakened due to pregnancy, which can easily cause allergic reactions or infections. If you have itchy skin accompanied by erythema, blisters and other abnormalities, it is recommended to seek medical treatment in time. 3. Pay attention to keeping your skin clean