Insufficient qi and blood can indirectly cause infertility. Symptoms of insufficient qi and blood include dizziness, weakness, poor sleep quality, and pale complexion. These conditions can lead to changes in menstruation, such as delays in the onset of periods and reduced menstrual flow; the color may also become lighter. There is a direct relationship between menstruation and infertility, which suggests that women with insufficient qi and blood may experience infertility symptoms due to this deficiency.