Insomnia is not a precursor of cancer, its a kind of sleep disorder, including physiological and pathological. Physiological insomnia is mostly caused by excessive mental tension, excessive pressure or irregular life and excessive late night. If it is considered pathological, it can be seen in neurasthenia, anxiety and depression, but also in menopausal patients. Neurasthenia patients mainly manifested as sleep disorders, there can be difficulty in falling asleep, wake up early during sleep, there can also be more dreams during sleep, affecting the quality of sleep. Anxiety disorder patients in addition to sleep disorders, at the same time can appear anxiety, restlessness, panic and fear, the main sleep disorders for the difficulty in falling asleep, but also can appear in the sleep nightmares and so on. Depression is characterized by low mood, lack of interest in anything, waking up easily during sleep, and dreams that affect the quality of sleep. Menopause usually occurs at the age of 45-55, and patients may have sleep disorders, which can be characterized by difficulty in falling asleep, waking up early during sleep or having more dreams during sleep, and may cause menopausal anxiety disorder or menopausal depression in severe cases.