Many parents of babies who come to the Children’s Health and Rehabilitation Department for treatment will say that I have baths at outside swimming pools, or that I take baths or soaks at home by myself, and that what they think of as hydrotherapy is just a bath. Is this in fact the case? I will explain why hydrotherapy is different from bathing by looking at the principles of hydrotherapy and how hydrotherapy machines work, as well as their role and scope of treatment. Hydrotherapy is a method that uses the physical properties of water, such as temperature, pressure and movement, to act on the body in different ways to achieve health and rehabilitation treatment. The automatic ozone disinfection vortex bubble hydrotherapy machine adopted by our center has automatic ozone disinfection function to avoid cross-infection, and a machine with a variety of functions of bath, bubble bath, whirlpool bath, compared to only the role of bath hydrotherapy pool, its treatment range is broader, more treatment methods, better therapeutic effect. The role of hydrotherapy: 1, the role of warmth: to promote blood circulation and metabolism, antispasmodic pain; 2, mechanical effects: (1) hydrostatic pressure to promote baby thorax development, improve lung capacity, enhance cardiopulmonary function, improve resistance; (2) the role of bubbles and whirlpools: ① nervous system: bubbles and whirlpools stimulate limbs, can promote the development of the baby brain and nervous system, improve IQ, emotional intelligence; ② bone and joint, muscle. bubbles, whirlpool touch to stimulate the development of infant bones, joints, ligaments and muscles; water resistance can exercise muscle strength, improve muscle endurance and coordination, expand joint mobility; ③ digestive system: bubble touch to promote gastrointestinal motility, improve digestion and absorption, promote early discharge of fetal stool, early remission of physiological jaundice, early absorption of nutrients, early recovery of physiological weight loss; ④ vision, hearing, touch, movement and balance sense The child can experience kinesthesia in the bubble and vortex, learn head control and balance, coordinate head and limbs, and play the effect of sensorimotor. The efficacy of hydrotherapy: 1, children’s rehabilitation: cerebral palsy, motor intelligence development is backward or impaired, the sequelae of encephalitis, a variety of neurological injury, orthopedic brain surgery, etc.; 2, high-risk children intervention treatment: premature babies, low birth weight babies, birth or neonatal severe hypoxia, convulsions, hyperbilirubinemia and cerebral hemorrhage, jaundice, serious infectious diseases such as encephalitis, etc.; 3, newborn health care treatment: strengthen the body, improve the ability to adapt to the environment; 3, newborn health care treatment: strengthen the body, improve the ability to adapt to the environment. Improve the ability to adapt to the environment; promote brain and nerve development; strengthen the flexibility and flexibility of the skeletal system; promote the development of the thorax, improve cardiopulmonary function; promote the discharge of fetal stool; promote digestion, absorption, and adjust sleep. Hydrotherapy is never the same as bathing!