It is believed that many people are troubled by the suspicion of having premature pubic hair development and do not know what tests should be done, in order to help alleviate your worries, the following is an introduction to what tests need to be done for premature pubic hair development. What are the relevant tests to be done for premature pubic hair development: growth hormone: human growth hormone is a protein secreted by the cells of the pituitary gland. Under normal circumstances, growth hormone is secreted in pulses, and its secretion is regulated by growth hormone releasing hormone (GHRH) produced by the hypothalamus, and is also influenced by gender, age and circadian rhythm, and secretion increases significantly during sleep state. The main physiological functions of growth hormone are to promote the growth of all tissues other than neural tissues, to promote anabolic and protein synthesis in the body, to promote lipolysis, to have an antagonistic effect on insulin, to inhibit glucose utilization and to raise blood glucose, and other effects. Child growth and development test: It is to evaluate the height and weight of children, the level of intellectual development, behavior, etc., and to reflect the degree of physical and intellectual development of children. Endocrine function test: It can reflect the functional status of endocrine glands and is divided into stimulation or excitation test and inhibition test. The stimulation test observes whether the response of the stimulated gland is normal, while the inhibition test is to see whether the gland with elevated function can be inhibited. The ability to stimulate and be inhibited indicates that there is normal positive and negative feedback function. Dexamethasone inhibition test: normal people take oral dexamethasone 3 mg per day (i.e., small dose method) in 4 doses for 2 to 3 days. Urinary 17 hydroxyl in obese patients can be high, but after small doses of dexamethasone inhibition, they can often be inhibited as normal.