In general, there is no direct correlation between olfactory dysfunction and nephritis, and olfactory dysfunction may be related to rhinitis or cranial nerve injury, and the clinical manifestations of nephritis are hematuria, proteinuria, edema, hypertension, etc. When suffering from rhinitis, there may be abnormal smell or even olfactory dysfunction. When suffering from rhinitis, there may be abnormal sense of smell or even olfactory malfunction, accompanied by nasal congestion and runny nose, and anti-allergic drugs such as loratadine or antibiotics such as cephalosporin can be used for treatment. When the intracranial nerve injury, such as the olfactory nerve damage can appear smell loss, can use some nutritional nerve drugs, such as vitamin B6. Clinical symptoms of nephritis are hematuria, proteinuria, edema, hypertension, etc. and impaired renal function, i.e., elevated creatinine and urea nitrogen, etc., can occur, but the presence of olfactory alterations is not observed clinically. Drugs are usually given for treatment, such as ACEIs including captopril, fosinopril, etc., or dialysis in severe cases. If symptoms of loss of sense of smell occur, patients are advised to go to the hospital in time for appropriate treatment under the guidance of the doctor.