Postpartum hair loss is not largely related to calcium deficiency. The main cause of postpartum hair loss is the rapid decline in estrogen levels in women after giving birth. Normal hair loss involves hairs that are in the catagen (transition) and telogen (resting) phases. Since the hair entering the catagen phase and those entering the growth phase are in a dynamic balance, it is possible to maintain a normal amount of hair. Pathological hair loss is caused by abnormal stimuli, such as high mental stress and hormonal imbalances. When experiencing postpartum hair loss, there is no need to be overly anxious. Generally, this condition gradually improves six months after childbirth. It's important to develop good daily habits, ensure adequate rest, maintain a pleasant mood, and strengthen nutrition.