What is growth hormone deficiency? It is a growth disorder caused by the lack or insufficiency of growth hormone secreted by the pituitary gland, and is the most common form of dwarfism. In the process of growth and development of children, many factors such as nutrition, disease, emotion, environment, heredity and endocrine function status can affect this process, in which the endocrine system plays an important role, especially growth retardation and delayed sexual development caused by growth hormone deficiency is more common. The basic role of growth hormone is to promote the body’s various tissues and cells to increase in size and proliferation, resulting in the growth and development of bones, muscles and various systems and organs, and the growth of bones leads to the growth of the human body. Throughout a child’s growth and development, growth hormone synthesis, secretion and action disorders caused by various reasons can lead to slow growth or even stagnation, and clinically show the corresponding symptoms. Primary “growth hormone deficiency” is more common in boys, and the length and weight of the affected children are normal at birth, but most of them will fall behind in growth after 1 year of age. At present, our country has its own production of recombinant human growth hormone products for clinical use, and has achieved certain therapeutic effects, with recombinant human growth hormone to treat growth hormone deficiency in children, its spirit, appetite and growth and development rate improved significantly, if the treatment method, the course of treatment is sufficient, then the height can be expected to reach the normal level.