What is the surgical procedure to remove fluid from the cul-de-sac called?

The surgical procedure to remove fluid from the cul-de-sac is called culdocentesis. This procedure involves inserting a needle through the vaginal wall into the rectouterine pouch (cul-de-sac) to aspirate fluid for diagnostic or therapeutic purposes. It is often used to evaluate conditions such as pelvic inflammatory disease, ectopic pregnancy, or other causes of pelvic pain.