Abstract
Cossack woman, 41 years old, unmarried, nulliparous, has 20 years of blood, not abundant, 3-4 days each, separated in a month; good build and nutrition. From birth, there is a defect in the urinary bladder. From the navel downward there is a divergence of the rectus abdominis muscles in the form of a triangle. Umbilical ring nѣt. In the lower part of the triangle, a tumor with an apple, formed by an everted posterior wall of the bladder. The holes of the ureters are visible, not allowing urine. The surrounding skin of the abdomen at the top is trimmed with a scar, at the bottom it directly passes into the mucous membrane of the bladder.