Diagnosis begins with a detailed symptom assessment using standardised questionnaires like the International Prostate Symptom Score (IPSS). These tools help quantify symptom severity and track treatment progress. Urinalysis examines urine for signs of infection, blood, or other abnormalities, providing insights into potential causes.
Uroflowmetry measures urine flow rate and pattern non-invasively, identifying obstruction or weak bladder muscles. Post-void residual measurement uses ultrasound to assess the amount of residual urine after urination, indicating incomplete emptying. These tests take minutes and require no special preparation.
Testing may include cystoscopy, in which a thin camera is inserted into the bladder and urethra to directly examine them and identify structural problems or inflammation. Urodynamic studies assess bladder pressure and function during filling and emptying, particularly useful for complex cases. Imaging studies like CT scans or MRIs may be recommended if stones, tumours, or anatomical abnormalities are suspected.
Blood tests, including PSA (prostate-specific antigen) for men, help rule out prostate conditions. Kidney function tests monitor kidney function and confirm that the kidneys are working properly. Results are available to guide treatment planning.