Gastrocnemius tenderness

Early clinical manifestations of leptospirosis include gastrocnemius tenderness, and bilateral bilateral can also be unilateral to varying degrees. The lighter ones only feel the calf swell, the pressure is mild, the severe ones have severe pain, can not walk, refuse to press. Leptospirosis is abbreviated as Leptospirosis, which is an infectious disease of animal origin caused by pathogenic Leptospira. Rodents and pigs are the main sources of infection, and they have spread worldwide. Clinically, it is characterized by early leptospirosis sepsis, damage to various organs and dysfunction in the mid-term, and various post-allergic complications. Severe patients can develop liver and kidney failure and diffuse pulmonary hemorrhage, often endangering the patient's life. The disease has spread to several continents in the world, especially in tropical and subtropical areas. The disease has been detected in 28 provinces, municipalities and autonomous regions in China, and the epidemic is more serious in Central South, Southwest, and East China. The onset season is mainly concentrated in the summer and autumn (June to October) rice harvesting period, which usually peaks from August to September, and the incidence of young and middle-aged farmers is relatively high. In regions with high temperature, sporadic cases can be seen throughout the year.