anal sex; anal intercourse
proctology department; proctology clinic; proctology
anoscope; proctoscope; rectal speculum
anal fissure; bleeding piles; hemorrhoids
proctology; colorectal surgery
anal bleeding; bleeding of the anus
entoproct (any animal of phylum Entoprocta)
ectoprocta; bryozoa; moss animals
anal valve; valvulae anales
postanal gut; post-anal gut; postcloacal gut
imperforate anus; anal atresia; aproctia
levator anus muscles; levator ani
internal anal sphincter (muscle)