# Anal: How big a diameter is without long term effects? **URL:** \ **Category:** Sex Toys\ **Created:** [January 31, 2015, 7:53am UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137 "2015-01-31T07:53:33Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![anon74172485](https://avatars.discourse-cdn.com/v4/letter/a/c77e96/32.png) [@anon74172485](https://lovehoneyforum.com/u/anon74172485)\ **Post date:** [January 31, 2015, 7:53am UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/1 "2015-01-31T07:53:33Z")
Hi there, I am a guy and currently play with a butt plug that are have a diameter of 35 mm. The sphinter is only streched to that temporarily and it fits with a bit of patience. The dildo we use for pegging has a diameter of 28 mm. The one I think about buying now (https://www.funfactory.com/de/dildos/magnum/) has a diameter of 38 mm and it is 18 cm long. Can I play with that (carefully of course) without experience negative long term effects? I think that the sphinter will eventually become too streched to stay closed then not playing, and I certainly do not want that. Up to which size I do not have worry about? Regards ---
**Author:** ![Sum\_Sub](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Sum\_Sub](https://lovehoneyforum.com/u/Sum_Sub)\ **Post date:** [January 31, 2015, 8:09am UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/2 "2015-01-31T08:09:33Z")
There's no definite answer to your question as everyone is different. The sphincter is a muscle and like all muscles you can train it to become stronger and more flexible, and like all muscles it will strain or tear if you overdo it. so, warm up, use lube, listen to your body and stay healthy and there's no reason you can't keep going up in size gradually. Your body will tell you when you've reached your limit. If you do feel intense pain there it usually means you've ripped the muscle slightly and you should give it a good two weeks to recover. ---
**Author:** ![Quiet\_ones\_are\_worse](https://dub1.discourse-cdn.com/lovehoney/user_avatar/lovehoneyforum.com/quiet_ones_are_worse/32/30803_2.png) [@Quiet\_ones\_are\_worse](https://lovehoneyforum.com/u/Quiet_ones_are_worse)\ **Post date:** [January 31, 2015, 8:41am UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/3 "2015-01-31T08:41:20Z")
Every one is different but as a rough guide 65mm dia. 2.5" should be fine, it's once you've got to 3" or 4" that you may notice some slight change( more in look than function ) if you slowly increase the size you'll be fine and you'll be amazed how far you can go if you wish, as sum sub said your body will tell you if you need to slow down or give it a break for a few days. ---
**Author:** ![anon74172485](https://avatars.discourse-cdn.com/v4/letter/a/c77e96/32.png) [@anon74172485](https://lovehoneyforum.com/u/anon74172485)\ **Post date:** [February 1, 2015, 1:09pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/4 "2015-02-01T13:09:41Z")
A diameter of 65 mm is a good number to keep in mind, then. Thanks! I currently think that I do not want to go do arbitrary size, I just want to have a sensation that is slightly more filling. I guess then 38 mm should be just fine. ---
**Author:** ![Sum\_Sub](https://avatars.discourse-cdn.com/v4/letter/s/c5a1d2/32.png) [@Sum\_Sub](https://lovehoneyforum.com/u/Sum_Sub)\ **Post date:** [February 1, 2015, 1:12pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/5 "2015-02-01T13:12:10Z")
If you want to feel full you could try inflatable plug. ---
**Author:** ![Subdom27](https://avatars.discourse-cdn.com/v4/letter/s/ce7236/32.png) [@Subdom27](https://lovehoneyforum.com/u/Subdom27)\ **Post date:** [February 1, 2015, 1:30pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/6 "2015-02-01T13:30:12Z")
> Sum Sub wrote: > > If you want to feel full you could try inflatable plug. +1. I own one and it's good for pushing your boundaries, so to speak. ---
**Author:** ![Sarahgee](https://avatars.discourse-cdn.com/v4/letter/s/22d042/32.png) [@Sarahgee](https://lovehoneyforum.com/u/Sarahgee)\ **Post date:** [February 1, 2015, 1:43pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/7 "2015-02-01T13:43:51Z")
38mm will be fine. You shouldn't have any long term effects. As said above, the inflatable butt plug will make you feel full. Once inserted, you just pump it up.you'll be suprised how big you can get it. It is a very strange ( in a good way ) sensation. It also vibrates. The actual plug itself isn't that big, its rock solid though. The only down side is all the wiring. Your sphincter should be fine, it's a muscle that gets worked out every day. I've been fisted in my ass during sessions and it still goes back to normal. It only stays open for a few hours before shrinking back down to close. ---
**Author:** ![anon74172485](https://avatars.discourse-cdn.com/v4/letter/a/c77e96/32.png) [@anon74172485](https://lovehoneyforum.com/u/anon74172485)\ **Post date:** [February 1, 2015, 3:07pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/8 "2015-02-01T15:07:35Z")
On the plug side, I have one with 35 mm maximum width and it gives me sufficient fullness. Currently, I would like to try more during pegging, and there an inflatable plug does not apply. @Sarahgee: I believe that the muscle can tighten again after a short time. What concerns me more is that it will eventually loose tension in decades, and I do not want to deal with that earlier than really needed. ---
**Author:** ![Henry\_the\_horse](https://avatars.discourse-cdn.com/v4/letter/h/f475e1/32.png) [@Henry\_the\_horse](https://lovehoneyforum.com/u/Henry_the_horse)\ **Post date:** [February 10, 2015, 2:31pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/9 "2015-02-10T14:31:54Z")
I don't actually know the size of my favourite butt plug but it is certainly much bigger than I ever thought i would be able to take when i started. It is still a bit of a struggle to get it in but it feels just great when it is and I haven't had any problem with tearing. As regards fisting I have now ben fisted through the third 'gate', again something I never thought I would achieve. I was worried initially that I would have indigestion after wards but so far no problems. I am now bent on getting fisted up to the elbow! Any warnings? ---
**Author:** ![CVR92](https://avatars.discourse-cdn.com/v4/letter/c/a4c791/32.png) [@CVR92](https://lovehoneyforum.com/u/CVR92)\ **Post date:** [February 10, 2015, 2:40pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/10 "2015-02-10T14:40:44Z")
The biggest I have at the moment is 4 inch diameter at widest point, I plan to get a 5 inch plug next :) x ---
**Author:** ![AsYouWish](https://avatars.discourse-cdn.com/v4/letter/a/eada6e/32.png) [@AsYouWish](https://lovehoneyforum.com/u/AsYouWish)\ **Post date:** [February 10, 2015, 4:36pm UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/11 "2015-02-10T16:36:13Z")
Wow. I have some way to go to catch up with you guys! ---
**Author:** ![Quiet\_ones\_are\_worse](https://dub1.discourse-cdn.com/lovehoney/user_avatar/lovehoneyforum.com/quiet_ones_are_worse/32/30803_2.png) [@Quiet\_ones\_are\_worse](https://lovehoneyforum.com/u/Quiet_ones_are_worse)\ **Post date:** [February 12, 2015, 8:12am UTC](https://lovehoneyforum.com/t/anal-how-big-a-diameter-is-without-long-term-effects/239137/12 "2015-02-12T08:12:53Z")
> CVR92 wrote: > > The biggest I have at the moment is 4 inch diameter at widest point, I plan to get a 5 inch plug next :) x Diameter? or did you mean circumference? 4" dia is big as I know, bigger than a fist.