Dildo-shaped vibrators should not be used for anal insertion if they
do not have a flanged base or something at the bottom end that will
effectively stop them from going all the way up the rectum. If a
vibrator does go all the way into your rectum, it is possible for it
to get stuck in your colon, and it may require a very embarrassing
trip to the emergency room to get it out. There are a variety of safe
vibrating anal toys available that are specially designed to avoid
this risk, including vibrating butt plugs, anal beads, and anal
If you have a plug-in vibrator, obviously you're in no danger of
losing it, but you may have trouble getting it up there in the first
place. You'll probably need to purchase special attachments for
vaginal or anal insertion. Attachments are available for the Hitachi
Magic Wand that resemble dildos or rippled anal probes.
Whenever you insert anything in your rear, use plenty of lube.
Water-based lube is compatible with all vibrating toys and
attachments, though silicone-based lubes last longer and don't go on