The causes of frequent sweating during pregnancy may be greater hormonal fluctuations, anemia, hypoglycemia and so on. 1. Hormonal fluctuations: due to the pregnant woman during pregnancy, the body’s progesterone, estrogen secretion fluctuations, which can lead to the body’s basal metabolism hyperactivity, the emergence of metabolic acceleration of the situation, manifested in the pregnancy of frequent sweating. This kind of situation is normal, no need to worry too much. 2. Anemia: Anemia may be caused by factors such as reduced iron intake, excessive iron loss, increased iron demand and unbalanced diet. Symptoms such as muscle weakness, accelerated respiration, excessive sweating and fatigue may occur, manifesting as frequent sweating in pregnant women. 3. Hypoglycemia: The causes of hypoglycemia include insufficient sugar intake, insufficient sugar production, excessive sugar consumption and excessive sugar conversion. Symptoms are dizziness, palpitations, fatigue, sweating, hand shaking, etc. Pregnant women may experience frequent sweating. There are many causes of frequent sweating in pregnant women, and it is recommended to visit a regular hospital to identify the cause.