There are many kinds of fruits and vegetables in summer, which are full of color, flavor and taste, making people appetite. However, patients with nephrotic syndrome should still strictly follow the diet rules and must not eat more, so as not to increase the burden on the kidneys. Watermelon, for example, can induce diuresis to reduce swelling, clear away heat and relieve summer heat, but excessive urination will also increase the burden on the kidneys, and the accumulation of watermelon sugar in the body is also a potential crisis of the disease.