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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 → increase capacity 🧭 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) 🧩
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) ❓ 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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