Introduction and objective: Acute urinary retention is a complication of benign hyperplasia of prostate (SHP). To help prevent the prognosis and prevention of the complication mentioned above, the authors studied with the aime to evaluate the relationship between age and characteristics urination status of prostate. Patients and method: the cross-sectional study on 134 men aged 50 or higher, examined at the Hospital of Thai Binh province from 6/2011 to 6/2012 with a diagnosis of benign prostatic hyperplasia. Results: average age 73.5 + or - 10.7; (50 -97); average prostate volume 42.8 + or - 18.2 cm3 (16.5 - 121.0 cm3); average prostate thickness: 42.3 + or - 7.6 mm; average prostate height: 41.2 + or - 8.7 mm, average prostate width: 45.7 + or - 6.8 mm. Analysis of the height, width, thickness of the prostate with the urinary retention condition shows that: height significantly affected the acute urinary retention (statistically different with p0.05). The risk of acute urinary retention in the group with prostate height of 40mm was higher than that in the group with the prostate height of 40 mm (statistically different with OR 0.05). The higher age the higher rate of urinary retention levels, the difference is statistically significant, with p 0.05. Conclusion: For patients with benign hyperplasia of prostate, in 3 indicators of prostate (height, width, thickness), the height clearly affect the status of urinary retention. If the postate height is or = 40 mm, the risk of acute urinary retention would higher (p 0.05). The rate of acute urinary retention tends to increase equivalently to the increase in prostate volume (p 0.05), but tended to increase equivalentl to the increase in age (p 0.05).
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