The main manifestations of postpartum depression: persistent depression, manifested as gloomy expression, listlessness, lethargy, easy crying, low mood, depression, frequent tantrums due to trivial matters, excessive anxiety about the baby's health, fear of not taking good care of the baby, reluctance to breastfeed the baby, feeling that life is meaningless, loss of appetite and loss of sexual desire. In severe cases, there are suicidal tendencies or behaviors that hurt babies.