Neonatal jumping includes physiological jumping and pathological jumping, the former is related to the imperfect development of the nervous system, and the latter is related to neuropathy, and the etiology should be clarified after timely consultation. 1. Physiological startle. It is mainly related to the imperfect development of the nervous system of newborn babies. When the cerebral cortex is immature, it is easy to cause the startle reflex to appear after hearing sharp and loud sound stimulation, when the position of the head and neck is suddenly changed, and when they are touched during sleep. 2. Pathological startle. If the startle reflex still exists half a year after birth, it may be related to neuropathy, such as damage to the central nervous system, etc., and the cause should be clarified by timely consultation and imaging examination. There may also be other reasons for newborns to jump, it is recommended to go to the hospital in a timely manner, improve the examination to determine the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.