A menstrual disc is a flexible, ring-shaped product worn high inside the vagina, resting in the vaginal fornix. Unlike cups or tampons, the disc collects fluid and is held in place by being tucked behind the pubic bone, not by suction. New users often wonder if the device remains secure during urination. The disc’s unique placement allows it to partially empty itself without manual removal.
The Auto-Dumping Phenomenon
Yes, menstrual discs frequently undergo a process where they partially or fully empty their contents when the user is positioned over a toilet. This function is widely recognized as “auto-dumping” or “self-emptying,” and is a distinctive characteristic of the disc design. It is not a sign of a faulty seal. This self-emptying action typically occurs when the user is seated to urinate or have a bowel movement. The momentary release of collected fluid allows individuals with heavier flows to extend their wear time between full manual empties.
Biomechanics of Self-Emptying
The mechanism behind auto-dumping is rooted in the disc’s anatomical placement and the function of surrounding muscle groups. The disc is positioned deep within the vaginal canal, with its front rim tucked behind the pubic bone, which provides primary support. When the bladder is evacuated or a bowel movement occurs, the pelvic floor muscles naturally relax for elimination. This relaxation, combined with increased intra-abdominal pressure, causes internal structures to shift.
This momentary change in tension can slightly dislodge the front rim, creating a tilt that allows collected fluid to spill out. Once the pelvic floor muscles return to their resting state, the disc’s rim often slips back into its correct, tucked-in position. The disc then continues to collect fluid without the user needing to manually intervene.
Managing Flow During Bathroom Use
Users can influence the auto-dumping feature based on their needs. To intentionally encourage partial emptying, a user can gently “bear down” or push slightly while seated on the toilet. Adjusting the seating posture, such as leaning forward or backward, can also alter internal pressure and muscle tension, assisting in a partial dump. This technique is helpful for extending wear time on heavy flow days.
Conversely, if a user wishes to prevent the disc from emptying, they should avoid any conscious bearing down. Maintaining a relaxed posture and using the toilet without straining helps keep the pelvic muscles from shifting the disc. After any auto-dumping event, it is advisable to use a clean finger to gently check that the front rim is securely tucked back behind the pubic bone.
Manual Removal and Hygiene
While auto-dumping offers a convenient way to partially empty the disc, complete manual removal is still required for cleaning and sanitization. The entire device must be removed, rinsed, and sanitized between cycles to maintain proper hygiene. Before attempting removal, wash your hands thoroughly to prevent the introduction of bacteria.
To remove the disc, a user should relax, perhaps by sitting on the toilet, and insert a clean finger until they can feel the front rim. The most common method involves hooking a finger underneath or over the firm rim. Pulling the disc out slowly, while keeping it level, helps prevent the contents from spilling prematurely.
Once removed, the contents can be dumped into the toilet, and the disc should be washed with mild soap and warm water before reinsertion. Between menstrual cycles, the disc must be sterilized according to the manufacturer’s directions, often by boiling it for several minutes.