Patients with occult nephritis only present with haematuria and/or proteinuria, patients do not have high blood pressure, oedema, renal function impairment, etc. No special treatment is needed for patients with occult nephritis of unknown underlying cause, patients should rest adequately, avoid infection and strain, avoid nephrotoxic drugs and monitor their condition in a timely manner, most patients have a good prognosis, a few may even recover spontaneously, only some may worsen their condition. Most patients can survive for a long time.