An artificial nipple can include a nipple tip section that can sufficiently reach the sucking fossa and can be appropriately squashed. The artificial nipple have a base section that widens to match an attachment object； an areola section that narrows gradually； and a nipple section that extends without widening halfway up to a tip and while narrowing slightly and gradually at a diameter-narrowing rate that is smaller than the diameter-narrowing rate of the areola section. The areola section has a wall thickness greater than that of the nipple section, the nipple section has a length sufficient to reach the sucking fossa, and a wall thickness at a boundary between the areola section and the nipple section is smaller than that of the areola section but greater than that of the nipple section, as a result of which a band-like weakened section is formed along the circumference of that site.
