Interstitial nephritis can be detected by urinalysis, but it can not be used to confirm the diagnosis. 1. Urinalysis of interstitial nephritis: when the patient undergoes urinalysis, the more common manifestations are the decrease of urine specific gravity and the change of urine acidity and alkalinity, as well as the abnormalities of red blood cells and white blood cells in urine, and the increase of amino acids and glucose in urine, and the seriousness of the condition may even cause the appearance of urinary proteins. 2. Diagnosis of interstitial nephritis: the gold standard of this disease is the pathological type of examination, that is, through the renal puncture examination to determine whether there is interstitial edema, fibrosis and inflammatory cell infiltration, etc., once these manifestations can be diagnosed. Patients with interstitial nephritis are advised to go to regular hospitals in time and under the guidance of specialists to actively treat the disease, and not to be negligent so as not to delay the condition.