The first group shows obstructive symptoms including straining during urination, intermittent voiding with reduced urinary flow rate, and a palpable midline bladder. The second group presents with infectious signs including septicemia, failure to thrive, and urinary tract infections, which are the most prominent features of this disease. In the neonatal and infantile periods, the primary obstructive symptoms are more prevalent, while at older ages, the infectious signs are dominant.