Drinking more water will not make you fat. The body becomes fat because the energy intake exceeds the energy consumption, and the main components that provide energy are sugar, fat and protein, of which the first two components have the most serious impact on obesity. For example, patients usually like to eat sweet things or eat a lot of pasta or eat a lot of hamburgers these high-energy food, and accordingly do not do aerobic exercise, the body will gain weight. Drinking water does not contain energy, so it will not cause the body to gain weight. If you find your body gaining weight after drinking water, it is time to rule out the possibility of edema. If the patient has a kidney disease, such as chronic nephritis or other types of nephritis, after drinking water can not be effectively excreted, it will be stored in the body, will cause edema, which is sometimes mistaken for fat.