Peräruisku

Peräruisku, also known as an enema, is a medical procedure used to introduce liquid into the rectum and lower colon for various therapeutic or diagnostic purposes. The term originates from the Finnish language, where *perä* means "anus" and *ruisku* means "syringe." Enemas are commonly employed to relieve constipation, prepare the lower intestine for medical procedures such as colonoscopies, or aid in the administration of medications.

The procedure typically involves inserting a lubricated tube into the rectum and slowly infusing a prescribed solution, often water, saline, or a mild soap solution. The volume and type of solution depend on the intended purpose, with therapeutic enemas usually containing around 500–1,000 milliliters of liquid. While generally safe when performed correctly, improper use can lead to discomfort, rectal damage, or electrolyte imbalances.

Peräruisku is also used in veterinary medicine to treat constipation or intestinal blockages in animals. In some cultures, enemas have been historically employed for cleansing purposes, though modern medicine emphasizes their medical rather than cosmetic applications. Proper hygiene and technique are essential to minimize risks, and individuals should consult a healthcare professional before attempting an enema, especially if they have underlying health conditions such as hemorrhoids, rectal fissures, or inflammatory bowel disease.