Pelvic wellness • Minneapolis
Find a period product that respects your anatomy.
A calm, clinical guide to menstrual cups, natural rubber Keepers, and discs—grounded in cervical position, comfort, and practical fit.
Explore the fit finderClinical education Led by Dr. Hannah Lind-Mercer, DPT
Comfort is personal.
Measurements help start a conversation.
Interactive guide
Cervical height & cup fit finder
Use your own measurement near the start of bleeding, when the cervix may sit lower. The result is an educational starting point, not a diagnosis or a guaranteed fit.
Your fit notes will appear here
Enter three details to see a size range, firmness considerations, and a removal cue.
This tool cannot assess pelvic floor function or prescribe a product. Stop if a product causes pain, pressure, urinary changes, or persistent irritation. A pelvic health clinician can help assess individual symptoms.
Placement matters
Canal or fornix? Two different resting places.
A menstrual cup usually opens in the vaginal canal and forms a light seal. A menstrual disc sits in the upper vagina, under the cervix, with its leading edge tucked behind the pubic bone. It does not rely on cup-style suction.
Learn how to measure and orient a discMaterial literacy
Silicone and gum rubber deserve a fair comparison.
No material is automatically right for every body. Compare the exact product, disclosed material, shape, firmness, care guide, and your sensitivities.
| Feature | Platinum-cured silicone cup | Natural gum-rubber Keeper |
|---|---|---|
| Material | Silicone elastomer; verify the maker's exact formulation and biocompatibility documentation. | Hevea-derived natural rubber latex. Avoid if you have a latex allergy or sensitivity. |
| Firmness | Ask for Shore A only if the maker publishes a test method and value. A quoted number is meaningful only with test conditions and product geometry. | Usually described by feel rather than a comparable public Shore A specification. Confirm with the maker. |
| Rim / seal | Rim stiffness, fold, vent holes, and body geometry all affect opening and removal. | Rim and body construction vary across Keeper versions; follow the specific instructions. |
| Care | Water and a mild, unscented cleanser if permitted; boil only as the manufacturer directs. | Follow the product's cleaning directions; do not assume silicone care instructions apply. |
| Longevity | Inspect regularly. Replace if damaged, tacky, cracked, or beyond the maker's stated service life. | Inspect for changes and follow product guidance; rubber can age and may be affected by storage conditions. |
A note from our clinical director
“A measurement is useful when it helps you notice a pattern—not when it makes you feel like your body needs to fit a product.”
Dr. Hannah Lind-Mercer, DPT · Pelvic Floor Physical Therapist
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