An enema is a medical procedure that involves introducing liquid into the rectum through the anus. This is typically done to relieve constipation, cleanse the bowel before a medical examination, or administer medication. The liquid used can vary, including saline solutions, water, or other therapeutic substances. Enemas can be performed at home or in a healthcare setting, depending on the purpose. While they can be effective for certain conditions, it's important to use them cautiously and under guidance, as improper use can lead to complications such as dehydration or electrolyte imbalances. Always consult a healthcare professional before using an enema.