The fact that the stomach is still big after giving birth may be a normal phenomenon, or it may be caused by over-nutrition, separation of the rectus abdominis muscle after delivery, and so on. 1. Normal phenomenon: usually after giving birth to a child, the uterus has not yet fully contracted, the uterus is larger, and it takes a certain amount of time to return to the size of pregnancy, which may appear after giving birth to a child stomach is still large. 2. Over-nutrition: If a woman who has given birth to a child eats too much nutritious food, it may lead to over-nutrition, which makes her prone to the situation of having a big stomach after giving birth to a child. 3. Separation of the rectus abdominis muscle: If the spacing of the rectus abdominis muscle increases excessively after pregnancy, it may separate the rectus abdominis muscle, and it may be difficult to return to the normal state after giving birth to a child, thus making it easy for the stomach to be still big after giving birth to a child. If a woman’s stomach is still big after giving birth and accompanied by other uncomfortable symptoms, it is recommended to consult a doctor in time, under the guidance of the doctor, complete the relevant examinations to clarify the cause of the disease and treat the symptoms.