A menstrual disc is a flexible, barrier-style product, typically made from medical-grade silicone, designed to collect menstrual fluid rather than absorbing it like a tampon. Unlike a menstrual cup, which sits lower in the vaginal canal, the disc is positioned high up in the vaginal fornix, just beneath the cervix. This unique placement allows it to sit out of the way for many normal bodily functions. A common concern for new users is whether the disc’s position will interfere with having a bowel movement. The disc’s design and high placement provide a clear answer, but with an important functional detail users should anticipate.
Anatomical Placement and Feasibility
The direct answer is that having a bowel movement while wearing a menstrual disc is physically possible without obstruction or displacement. The disc’s rim is tucked behind the pubic bone, creating a secure hold in the vaginal fornix. The vaginal canal, where the disc is situated, and the rectum, where stool passes, are separate anatomical passages.
This distinction in anatomy is what makes the menstrual disc different from a traditional menstrual cup, which sits lower down in the vaginal canal and can sometimes be dislodged by the pressure of a bowel movement. The disc is held securely by the bony structure of the pelvis, ensuring it remains out of the path of stool.
The Phenomenon of Automatic Emptying
While the disc will not be pushed out, having a bowel movement often triggers “automatic emptying.” This process occurs because defecation requires the engagement of the pelvic floor muscles. When a person bears down, the pelvic floor muscles naturally flex and move downwards.
This downward pressure can cause the front rim of the disc to momentarily shift or slip out from behind the pubic bone. The slight dislodging breaks the seal, allowing collected menstrual fluid to spontaneously release into the toilet.
This hands-free emptying is a normal and anticipated feature of the disc’s design, not a sign of a leak or incorrect fit. Many users find this spontaneous release beneficial, especially on heavy flow days, as it partially empties the disc and can extend its wear time.
Post-Bowel Movement Repositioning and Hygiene
Once the bowel movement is complete and the pelvic floor muscles relax, the menstrual disc often settles back into its correct position. However, a light manual check is recommended to ensure the disc is fully secured for continued wear. The primary step after automatic emptying is to confirm the disc’s rim is properly tucked back behind the pubic bone.
To do this, first wash your hands thoroughly before reaching in. Use a clean finger to gently feel for the rim and push it upwards and back until it is securely locked behind the pubic bone. This simple re-tucking action ensures the disc is fully seated and leak-proof before standing up.
Maintaining hygiene is paramount, so hands must be washed again immediately after any contact with the disc or vaginal area.