birthing chair, a special seat used in labor and delivery to promote the comfort of the mother and facilitate the birthing process. The chair may be specially designed, having many technical features, or it may be a simple three-legged stool with a high, slanted back and a circular seat with a large central hole in it. The newer birthing chairs allow women to sit straight up or to recline. The chair has a lower section that may be removed or folded out of the way. Lights, mirrors, and basins may be attached. The upright position appears to shorten the time in labor, particularly the second or expulsive stage of labor, probably because of gravity and increased participation of the mother. The chair is not suitable for use with anesthesia.