Irregular menstruation after childbirth, generally manifested as irregular bleeding, but not all bleeding is menstruation, may also be abnormal uterine bleeding, need to clarify the cause for targeted treatment. Common causes and treatment methods 1, emotional abnormalities: such as postpartum mental depression, mental tension, etc., can lead to postpartum menstrual disorders. In this case, it is recommended to adjust emotions and show more concern for the patient. 2. Hormone level changes: After delivery, as the maternal hypothalamus-pituitary-ovarian axis needs to be readjusted, the hormone level in the body cannot be quickly restored to the pre-pregnancy state, while breastfeeding increases lactogen secretion and reduces estrogen level, at this time, menstruation is prone to longer cycles and the volume of menstrual blood is large and small. This symptom does not need to be treated. After ovulation function is restored, menstruation will become regular naturally; 3. Intrauterine residue: If irregular menstruation is manifested by symptoms such as larger menstrual volume and longer periods, it should be considered that this condition is caused by residual tissue in the uterine cavity. At this time, you should go to the hospital for ultrasound examination to clarify whether there are residues in the uterine cavity, commonly used drugs are new biochemical particles. In addition, under the guidance of the doctor, biochemical soup can be taken to promote uterine contraction and accelerate the discharge of residual tissues in the uterine cavity. Note that postpartum women can do appropriate exercise, but also pay attention to rest, avoid overexertion, to achieve a combination of work and rest. Avoid anxiety, depression and other negative emotions, and keep a happy and stable mood. Daily attention should also be paid to personal hygiene, change and wash underwear regularly, avoid bathing and hot springs, etc. to prevent infection.