We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. Like other muscles, your anal sphincter is only accustomed to stretching so far. Your anus is full of sensitive nerve endings that make anal play feel oh so good.
Anal Stretching & Training | Rectal Dilation | Bespoke Surgical
Purpose: This study was undertaken to investigate the effects of anal stretching on anal pressures and damage to the external anal sphincter. Methods: This study was performed on 37 guinea pigs. Animals were divided into three groups: control group, quick stretching group, and continuous overstretching group. Anal stretching was conducted by an 8-F Foley catheter balloon. Results: It was found that if the muscle was stretched from to percent of its original length, anal resting pressure ARP kept relatively steady, but anal contracting pressure ACP gradually increased; from to percent, a sharp ARP increase was developed, but ACP gradually decreased to zero; beyond percent, ARP remained unchanged plateau phase. By histologic examination, it was revealed that when the muscle was stretched at the ARP plateau phase, an ischemic zone of necrosis and an edematous zone of necrosis could be clearly identified in the muscle.
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Just like working out any part of your body, sphincter muscles also need to be trained for maximum flexibility. This anal training process, also called anal stretching or dilation, often involves the act of opening, widening, or stretching the anus with tools called anal dilators or anal expanders. It is often done after surgical procedures on the anus to restore the area to its normal state or as a method to prevent anal fissures.
Just as you can overstretch your hamstring in yoga, you can overstretch your sphincter during anal. Also, lube. Goldstein adds, specifying not to opt for a warming or cooling or numbing variety. Furthermore, without the proper prep, Dr. Goldstein says you open yourself to the risk of injury and decidedly not-fun situations, like pain, the tearing of anal tissue, and even permanent dysfunction.