If irregular menstruation occurs after giving birth to a child, many are due to changes in hormone levels, etc., it is recommended to check hormone levels in the hospital to see if there is any abnormality, as follows: First, you need to pay attention to whether there is a situation of smoking, drinking, because smoking, drinking on the female body damage is still relatively large, mainly affects the function of the ovaries, which affects the function of the endocrine system. Secondly, women who have given birth to children are generally fatter, some women may diet in order to maintain a slim figure, which can also lead to malnutrition, decreased immune function, etc., and also irregular menstruation. Thirdly, due to pregnancy and after giving birth to a child, emotional fluctuations will affect the function of the ovaries and irregular menstruation will occur. Therefore, after giving birth to a child, you must keep your mood happy and have a healthy rhythm of life. In addition, you can regulate your menstruation through black fungus and red date tea, hawthorn, brown sugar drink, etc., and medication if necessary.