How to Choose the Right Dilator Size

Vaginal dilators are clinically recommended tools that gently restore and maintain the capacity, elasticity and comfort of the vaginal canal. Used consistently and patiently, they support healing, reduce pain and help to restore sexual wellbeing.

They are used in the management of vulvovaginal atrophy and the genitourinary syndrome of menopause, vaginismus, dyspareunia, MRKH syndrome, the effects of cancer treatment and pelvic floor dysfunction, and are routinely recommended after surgery or pelvic radiotherapy.

One of the first questions we're asked is which size to start with. This guide explains how our Soul Source dilators are sized, and whether to buy one size or a set.

Please take specific guidance from your healthcare practitioner if they have provided individual recommendations for you and your health condition.  

Soul Source Dilator Sizing

Soul Source dilators come in 8 graduated sizes, made from body-safe, medical grade silicone. Each one is a little wider and longer than the last, so you can move up gradually.


The chart shows each size by width and length. The dilators are tapered, so they don't get wider than the stated width.

Which size should I start with?

Start with the largest size that feels comfortable. If you're not sure, or you have pain or tightness, start with the smallest.

You should be able to insert the dilator slowly, with plenty of lubricant, without pain. If it hurts, stop, take a breath and try a smaller size. Never push through pain.

Moving up a size 

Once a size feels comfortable, you can move up to the next one. This can take days, weeks or months, and everyone goes at their own pace. Practise for a few minutes each day and build up the time as it gets easier.

You don't need to reach the biggest size unless it's relevant to your goals.

Shall I buy one size or a set?

You can buy our dilators individually or in sets.

• Individual: if you know which size you need, want to try one first, or want to add the next size up.
  
• Small set (sizes 1 to 4): if you're just starting out, or penetration is painful.
  
• Medium set (sizes 3 to 6): if you're already comfortable with smaller sizes.
  
• Large set (sizes 5 to 8): if you're comfortable with mid-sized dilators and working towards the larger ones.
  
• Progressive set (sizes 1, 3, 5 and 7): four sizes spread across the range, with bigger steps between them.
  
• Full set (sizes 1 to 8): every size. A good choice if you're unsure where to start, or expect to work all the way up.

Some tips for using a dilator safely

• Use a generous amount of water-based lubricant, such as YES Water-Based.
• Find a quiet, private space and use deep breathing to relax your muscles.
• Clean your dilator thoroughly after each use.
• If your symptoms are complex, or there's any risk of prolapse, see a specialist first.

The POGP directory lists well-qualified women's health physiotherapists.

If you've had gender affirming surgery, we also stock Soul Source GRS dilators, which are designed for that purpose and have different sizing.

Everyone's journey is unique, so be gentle with yourself and celebrate each milestone along the way. As always, we'd encourage discussing any treatment decision with your own healthcare team.

Please head over to our Dilator homepage for more information and to purchase your dilator.  We provide further reading on Dilator Benefits, and an 8-step guide to using one here.