What Is Dilation Therapy?
Dilation therapy is the use of a vaginal dilator to gradually stretch and relax the pelvic floor muscles, helping the body adapt to penetration without pain. It is the most widely recommended at-home treatment for vaginal tightness — used on its own or alongside Pelvic Floor Physical Therapy.
Practiced consistently, dilation therapy helps interrupt the cycle of muscle guarding and pain by retraining the pelvic floor, desensitizing the pain response, and rebuilding confidence around penetration — at the user’s own pace.
Common reasons women start dilation therapy:
- Vaginismus or general vaginal/pelvic muscle tightness
- Painful sex (dyspareunia) or inability to tolerate penetration
- Recovery after pelvic radiation, surgery, or childbirth
- Vaginal changes related to menopause
- Preparing for pelvic exams or intimacy after a long pause
Women Don’t Fail Therapy. Therapy Tools Fail Women.
Dilation therapy works — when women can stay with it. But the tools that have traditionally been used to deliver that therapy were not designed with adherence in mind. They were designed to dilate. Milli was designed to do something different: to make dilation therapy feel manageable enough to return to, session after session.
Why that matters:
In either a dilator-only or a Pelvic PT pathway, home therapy adherence is what determines outcomes. If adherence is low, so is the success rate. A tool engineered to reduce friction — not just physically, but emotionally — makes consistency significantly more achievable.
Key principle:
Milli exists to reduce physical and emotional stress — so dilation therapy becomes manageable, structured, and achievable.
The Adherence Gap
Traditional approaches to pelvic muscle tightness show meaningful gaps in real-world follow-through, whereas a recent clinical study showed that 85% of Milli users stayed on track even after 6 months.
85%
of Milli users stayed on track at 6 months
41%
of static dilator users discontinue by 3 months
29%
of Pelvic PT referrals complete the full treatment course
25%
static-dilator adherence reported at 12 months
Your Dilator Options
There are two main types of dilators on the market today: traditional static dilator sets and expanding dilators. Both can be useful — but the one that supports consistent use is the one most likely to help YOU reach your goals.
| Design Feature | Static Dilator Sets | Milli Expanding Dilator |
|---|---|---|
| Sizing | multiple fixed sizes (typically 5–7 devices) |
one device, 15–40mm continuous range
|
| Size adjustment | requires removal and reinsertion of a larger device |
adjustable in 1mm increments, no reinsertion
|
| Size increments | jumps up to 5mm between sizes |
1mm precision
|
| Vibration | none integrated (separate device required) |
optional low and high integrated vibration
|
| Progress tracking | visual/manual estimate |
real-time digital display
|
| Storage | multiple devices |
single device with discreet charging case
|
| Prescription | varies |
FDA-cleared over the counter
|
| Published data | 41% discontinued by 3 months, 57% by 6 months |
Milli clinical study = >85% on-track at 6 months
|
Meet Milli
Milli is the first and only FDA-cleared expanding vaginal dilator — engineered specifically around the reasons women stop dilation therapy. Instead of a set of static plastic sizes you have to swap, Milli is one device that gradually expands inside the body, 1mm at a time, at a pace you control.
Every design choice traces back to one question: will she stay with it?
Why Milli is built differently:
- Designed to stay consistent — gradual 1mm expansion makes the next session easier, not harder
- Integrated relaxation support — built-in vibration helps relax pelvic floor muscles and reduce the pain response
- Designed for her experience — less clinical, less intimidating, engineered for confidence and control
- Private & on her schedule — practice at home, OTC, on her own timeline — independently or alongside Pelvic PT
