Endocrine disorders are changes in hormone levels that refer to certain types of disorders, such as hyper- or hypothyroidism caused by an imbalance in thyroid hormone levels. Insomnia is a common clinical condition that may be caused by endocrine hormone level imbalance. When suffering from hyperthyroidism, patients may show symptoms such as agitation, irritability and insomnia, palpitations, etc. In addition, they may also have weakness, fear of heat, excessive sweating, weight loss, hyper appetite, increased stool frequency or diarrhea, and scanty menstruation in women. In addition to endocrine hormone level disorders, there are many other causes of insomnia, including psychological, physiological, environmental, drugs, lifestyle behaviors, mental and systemic diseases, such as emotional excitement, sleeping in a noisy environment, drinking coffee before bedtime and so on may lead to insomnia. Patients with endocrine hormone level disorders need to go to the endocrinology clinic in time to determine the cause of the disease and then use the right medication. Unexplained chronic insomnia, should also actively find the cause of the disease, targeted treatment, to ensure the quality of sleep.