After giving birth to a baby, irregular menstruation is mostly due to endocrine disorders, because after giving birth to a baby to breastfeed, as a woman often at this time to rest is not good, very fatigue, so it will lead to endocrine disorders, which will cause irregular menstruation. It is recommended to take a blood test for sex hormone six on the second or third day of menstruation to understand the endocrine situation, and ultrasound can also be done to rule out organic pathology of the uterus if necessary. If there is no other problem, you can take Chinese medicines to regulate menstruation, commonly used is to regulate menstruation and benefit the spirit of tablets or eight treasures mother capsule, can be effective in regulating the menstrual cycle. It is recommended not to eat greasy, sour and spicy food during the period of taking the medicine, so as to ensure the effectiveness of the medicine, so that the medicine can play a better role.