digestion. 1  the process in the alimentary canal by which food is broken up physically, as by the action of the teeth, and chemically, as by the action of enzymes, and converted into a substance suitable for absorption and assimilation into the body. 2  the function or power of digesting food: My digestion is bad.
Overview of Sitz Bath. A sitz bath is a bath in just enough water to cover the buttocks, upper thighs and lower abdomen. It is more labor intensive than other hydrotherapy treatments, but it powerfully affects the pelvic and abdominal organs.
The ischial tuberosity (or tuberosity of the ischium, tuber ischiadicum), also known informally as the sitz bone, or as a pair the sitting bones) is a large swelling posteriorly on the superior ramus of the ischium.he tuberosity is divided into two portions: a lower, rough, somewhat triangular part, and an upper, smooth, quadrilateral portion. 1  The lower portion is subdivided by a prominent longitudinal ridge, passing from base to apex, into two parts: