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What is it
Similar to a Foley balloon but with two balloons — one above the cervix and one below — providing pressure from both sides.
How your body works here
Same mechanism as a single Foley (stretch → local prostaglandin release), but with pressure applied to both sides of the internal os. Two balloons distribute the stretch across the full length of the cervix rather than only the inside surface.
Benefits (B)
- Medication-free cervical ripening.Review sources ↓
- Two points of pressure may improve ripening for some.Review sources ↓
Risks (R)
- Discomfort during placement.Review sources ↓
- Cramping, spotting.Review sources ↓
- Accidental rupture; rare infection.Review sources ↓
Alternatives (A)
- Single-balloon Foley.Review sources ↓
- Prostaglandin medications.Review sources ↓
- Continued monitoring without induction when appropriate.Review sources ↓
Evidence summary
Outcomes are broadly similar to single-balloon Foley. Choice often depends on clinician familiarity and local practice.
Sources
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Questions to ask your provider
- Why this device specifically?
- How will I be monitored while it's in place?
Intuition & Nothing/Wait (the I and N in BRAIN)
What is your gut telling you? What happens if you do nothing or wait?
Add to my birth plan
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This is a personal preference, not a decision. Final choices happen in conversation with your care team.
After you talk it through
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