Smoking is not allowed in nephrotic syndrome, and smoking may cause complications such as infection and aggravate nephrotic syndrome. Nephrotic syndrome usually occurs renal dysfunction, metabolic disorders, decreased immunity and other symptoms, some of which can be acute disease after upper respiratory tract infection, while infection is also the most common complication. Smoking itself will produce a lot of harmful substances, easy to cause lung infection, and when suffering from nephrotic syndrome, infection can lead to poor treatment of the disease, and even can cause relapse, so nephrotic syndrome can not smoke. Patients with nephrotic syndrome are advised to go to the hospital in time and follow the doctor’s instructions for standardized diagnosis and treatment.