Choosing the size of your breast pump funnel

Choosing the size of your breast pump funnel

The breast pump awakens a love-hate in the mothers who use it. It can be a great ally to maintain our lactation but it can also be a torture above all if we do not succeed with the extractor that suits us well.

Getting the funnel size right is the key to a pleasant and effective extraction. And the same way we buy shoes in our size, we should keep in mind that not all nipples are the same. That each mother has a different nipple and the right choice of funnel is very important to have no pain and to be able to express the maximum amount of milk.


 But do all breast pumps have funnel sizes?

Unfortunately, not all brands seem to know that funnel sizes are key to effective pumping.

When you consider looking for a breast pump try to find out if the brand makes different sizes, if it only makes one standard size make sure before buying it that it is yours or that it will fit you.

In some support groups they have loan pumps, it would be ideal if you could see and try some before you decide to buy a particular brand.


 How do I measure my nipple?

It’s easy, you have to measure the face of the nipple with the help of a tape measure or a ruler. You have to measure in millimeters and it is recommended to add 2mm extra.

From that measurement you can choose the most appropriate size. It is important to note that the size of the funnel should be a little higher than the size of the nipple.


 What funnel sizes are there?

Each breast pump brand is different and each one offers one or more sizes. We review the most common brands available on the market, so that you can select the one that best suits you.

Nuk 1 size
Medela 5 sizes (21, 24, 27, 30, 36 mm)
Philips Avent 1 size (25mm)
Chicco Breast Pump 1 size
Tommee Tippee 1 size


2 sizes (large and small)


How do I know if the breast pump funnel is right for me?

To find out if it’s right, the first thing is that we shouldn’t feel pain in the nipple when we start the extraction*.


It is necessary to observe if any of these situations occur:


  • The nipples do not rub the sides of the funnel and can not move freely
  • Don’t let too much areola into the funnel.
  • There are no areas of the skin that are marked or reddened.
  • That the nipple does not suffer an ischemia and remains white.
  • That we do not feel pain and/or a lump appears in the chest right after the extraction.


In the event that any of these things occur, checking the size is very important when it comes to being able to express milk effectively and painlessly.


 What happens if the size is not adequate?

If the size of the funnel is not adequate, several things can happen. The first is that there are injuries, cracks in the nipple or at the base of it. The second thing that can happen is that the pumping is inefficient and frustrating because you can’t express the milk you need to store. Many mothers who have well-established breastfeeding but are unable to express a drop with a breast pump can increase milk production only by changing the funnel.

In short, buying a breast pump is a conscious decision and if we can, it is ideal to try it before you buy it to make sure you are doing well.

In addition to the funnel, there are other elements to consider such as quality, double extraction and stimulation. Here’s this article from LactApp to get more information on the subject and help you make the best decision.

*There are extractors that only perform extraction by creating vacuum, and this fact can also produce pain.

Remember that MEDELA is a brand friend of LactApp, and that in the product button of the app you have a direct discount on its entire range of breast pumps, with the new Swing Flex and its adaptable funnels (we show them in stories of instagram) and products in general.


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