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#Post#: 462--------------------------------------------------
How to Choose the Right Menstrual Disc Size: Sizing Guide 2025
By: emma Date: September 30, 2025, 8:22 am
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How to Choose the Right Menstrual Disc Size: Sizing Guide 2025
Choosing the right menstrual disc size is the key to comfort,
leak-free performance, and confidence. This comprehensive sizing
guide helps you pick the perfect disc based on anatomy, flow,
and lifestyle. 📏 Key Factors That Affect Sizing 1)
Cervix Height � Low cervix: Choose shallower, softer discs or
smaller diameter � Medium cervix: Most standard discs fit well �
High cervix: Larger diameter or firmer rim helps placement How
to measure: � Insert a clean finger and feel for the cervix
(round, firm, like a nose) � Note how deep your finger goes:
knuckle 1 = low, 2 = medium, 3 = high 2) Flow Volume � Light to
medium: 30�50 ml capacity is enough � Heavy: 50�70 ml capacity
recommended � Very heavy: 70�80 ml (or use higher-capacity
brands) 3) Pelvic Floor Tone � Strong tone (athletes, heavy
lifters): Slightly firmer rim improves seal � Sensitive/soft
tone: Softer discs improve comfort 4) Birth & Anatomy History �
No vaginal births: Standard sizes often fit best � Postpartum:
Consider larger diameter or firmer rim for seal 📊 Sizing
Recommendations by Profile [table][tr][td]Profile[/td]
[td]Recommended Disc[/td] [td]Why[/td] [/tr] [tr][td]Beginner,
medium cervix[/td] [td]Flex Disc (disposable)[/td] [td]Easy
insert, universal fit[/td] [/tr] [tr][td]Eco-first, medium/high
cervix[/td] [td]Nixit (reusable)[/td] [td]Soft, one-size,
comfy[/td] [/tr] [tr][td]Heavy flow, high-impact[/td] [td]Cora
Disc (reusable)[/td] [td]Firmer rim + 60 ml[/td] [/tr]
[tr][td]Low cervix, sensitive[/td] [td]Shallow, soft disc[/td]
[td]Less pressure, easier fit[/td] [/tr] [tr][td]Unsure, wants
removal aid[/td] [td]Lumma Disc (string)[/td] [td]String helps
removal[/td] [/tr] [/table] 📐 Diameter vs Capacity �
Diameter affects how the rim tucks behind the pubic bone �
Capacity affects wear time on heavy days � For leaks with
correct placement → try larger diameter � For frequent
emptying → try higher capacity 🧪 At-Home Fit Test
(3-Day Protocol) Day 1 (Light day): 1. Insert at home, walk,
sit, squat 2. If you feel the rim → size may be off or
placement shallow Day 2 (Moderate): 1. Wear 6�8 hours 2. If
leaks without overflow → diameter too small or rim too
soft Day 3 (Heavy): 1. Track empty intervals 2. If <6h on heavy
days &#8594; increase capacity &#129517; Brand Shortlist by Need
� Maximum capacity: Cora Disc (~60 ml) � Softest feel: Nixit �
Beginner-proof: Flex Disc (disposable) � Easiest removal: Lumma
(with string) � Budget / multiple sizes: Lumma (S/M/L) &#129513;
Troubleshooting Sizing Issue: Leaks despite correct placement �
Size up diameter or choose firmer rim (Cora) Issue:
Pressure/discomfort � Size down diameter or switch to softer rim
(Nixit) Issue: Hard to reach on removal � Try smaller diameter
or disc with string (Lumma) Issue: Frequent overflow on heavy
days � Increase capacity (50�70+ ml) &#10067; FAQ Q: Do one-size
discs really fit all? A: They fit many, but not all. Use the
3-day fit test to confirm. Q: Low cervix with heavy flow � what
should I choose? A: Softer, slightly smaller diameter plus
higher capacity, or plan more frequent emptying. Q: Active
lifestyle and strong pelvic floor � what should I choose? A: A
firmer-rim disc (e.g., Cora) to maintain a reliable seal during
impact. [hr] Not sure about your size? Share height/weight,
cervix height (low/medium/high), flow intensity, and goals � the
community will recommend a precise fit.
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