Rabies, also known as hydrophobia, is characterized by the characteristic symptoms of hydrophobia, fear of wind, fear of restlessness, pharyngeal muscle spasms and progressive paralysis. Typical clinical manifestations of rabies are divided into three phases: the first phase is the prodromal phase, manifested as low fever, lethargy, headache, nausea, general malaise, and then there is a fear of restlessness, irritability and insomnia, sensitivity to sound, light, wind and other stimuli and a feeling of throat constriction, a more diagnostic significance of the early symptoms is that, in the top of the healing wounds itchy, pain, numbness, and ants in the walk of the abnormal sensation. The second phase is the excitation phase, the period of more typical manifestations of rabies, characterized by high levels of excitement, fearfulness and restlessness, and fear of water and wind. Typical patients are particularly thirsty, but do not dare to drink, see water, hear the sound of water, drink water or just mention the word water, will cause severe spasm of the pharyngeal muscles, for the outside world of a variety of stimuli, such as wind, light, sound will also cause spasm of the pharyngeal muscles. The third stage is the paralytic stage, the patient’s muscle spasm gradually stops, and then enters the generalized paralysis, from quiet to coma, and finally death.