This document discusses ectopia vesicae, which is an incomplete development of the bladder wall that occurs in approximately 1 in 50,000 births. It presents with an absent umbilicus and exposed viscera. Treatment involves iliac osteotomy and closure of the bladder and abdominal wall in the first year of life. Later reconstruction of the bladder neck and sphincters is required. The document also discusses lower urinary tract infections, noting that they are more common in women, with risk factors like incomplete bladder emptying, urinary tract abnormalities, and estrogen deficiency. Common bacteria that cause cystitis are described and symptoms like frequency, urgency and dysuria are outlined.