Lavage (from the French for "wash") or therapeutic irrigation is the medical term for any cleaning or rinsing for medical purposes. Some examples are: * Antiseptic lavage, using an antiseptic or anti-fungal solution on a hollow organ, usually one of the intestines. * Bronchoalveolar lavage, where an endoscope is used to inject a small amount of water into the lungs where it is recollected for testing. * Gastric lavage or more colloquially "stomach pump", where the contents of the stomach are removed. * Peritoneal lavage, where liquid is injected into the peritoneum and removed for testing. * Arthroscopic lavage, where an arthroscope is used to wash out blood, debris or other fluid from a joint. * Ductal lavage, where a small amount of fluid is injected into the breast