Which procedure is performed to remove substances from inside the body using a vacuum or suction?

The procedure associated with removing substances from inside the body utilizing a vacuum or suction is known as aspiration. During this process, a needle or tube is often inserted into a body cavity to draw out fluids or tissues, which can be used for both diagnostic and therapeutic purposes. For instance, aspiration can be used to remove fluid accumulation in conditions like ascites or to sample a cyst for analysis.

Curettage involves scraping tissue from a surface, often used in procedures related to the uterus, and does not typically involve suction. Incision refers to making a cut into the body, usually to access tissues or organs, but does not entail suction or removal of substances. Excision is the surgical removal of tissue or organ sections but is also not performed with suction. Thus, aspiration stands out as the procedure specifically characterized by its use of vacuum or suction methods to remove internal substances.