Questions: Cystocele: protrusion of the bladder

The answer is the first one: protrusion of the bladder.

Explanation for each option:

1. Protrusion of the bladder: This is the correct definition of a cystocele. A cystocele occurs when the wall between a woman's bladder and her vagina weakens and allows the bladder to droop into the vagina. This condition is also known as a prolapsed bladder.

2. Stone in the bladder: This is incorrect. A stone in the bladder is referred to as a bladder stone or vesical calculus.

3. Inflammation of the kidney: This is incorrect. Inflammation of the kidney is known as nephritis.

4. Stone in the kidney: This is incorrect. A stone in the kidney is referred to as a kidney stone or renal calculus.

In summary, a cystocele is the protrusion of the bladder into the vaginal wall.