Bladder tuberculosis can be checked by routine urinalysis, DNA testing for Mycobacterium tuberculosis in urine and cystoscopy and cystography. Urine routine in patients with bladder tuberculosis can see more pus cells and red blood cells, and urine examination is often positive to find Mycobacterium avium. Cystoscopy can see bladder mucosal congestion, edema, tuberculosis nodule or ulcer formation and can see the bladder capacity becomes smaller, microscopic biopsy can confirm the bladder tuberculosis. Mycobacterium tuberculosis DNA assay is a fluorescence quantitative PCR test technique to detect whether the specimen contains Mycobacterium tuberculosis DNA, if found positive, it can be sure that the patient is infected with Mycobacterium tuberculosis. On cystography, patients with existing bladder contracture have a very small rounded bladder with non-smooth edges, and in severe cases, the bladder neck is open. If spontaneous rupture of the tuberculous bladder occurs, there is sudden abdominal pain, and yellow urine can be seen on abdominal puncture. In late stage, intravenous urography can show renal ureteral tuberculosis and small bladder capacity.CT examination is now also widely used in the diagnosis of genitourinary tuberculosis. Tuberculosis of the bladder is mostly secondary to renal tuberculosis, and the early lesions are inflammation, edema, congestion and ulceration, and in the late stage, contracture of the bladder will occur, and when the lesion involves the ureteral orifice, stenosis or atresia will occur, resulting in renal ureteral fluid and renal hypoperfusion. Most patients with tuberculous cystitis have frequent urination as the first symptom, and then the frequency of urination gradually worsens and is accompanied by urinary urgency, urinary pain and hematuria. If the patient is suspected of bladder tuberculosis, it is recommended to go to the regular hospital to receive examination, the patient should not self-diagnosis, so as not to delay the condition.