Feet – How come they’ve grown after I’ve had a baby?

Why, after being a size 4 all of my adult life do I now have to buy size 5 shoes?! My feet have grown!

Feet and Hands

All pregnant women expect to get bigger with pregnancy, but it’s not just your bump that can grow! Research has found that Relaxin, the hormone responsible for relaxing the joints, ligaments and muscles surrounding the pelvis and low back in preparation for child birth, will also act on other ligaments in the body.

A study at the University of Iowa found that on average during pregnancy, arch height decreased by between 1-5mm and foot length increased by 2-10mm, with these changes remaining at 19 weeks post-delivery.

During pregnancy, as your feet take the load of your increasing body weight (plus a growing bump), combined with gravity and the effects of your hormones, can cause your feet to ‘grow’ in size, either in length or width. Many women find they will need to wear a larger shoe size during their pregnancy to accommodate their larger feet. This is often due to water retention and swelling in the feet and legs, causing them to look and feel bigger than they are!

Most women will find that once they have had their baby as the relaxin levels in their body lower, their feet will return to their ‘normal’ pre-pregnancy size. However, in some cases there can be a permanent increase in shoe size. This can be due to a variety of factors – number of pregnancies, hyper-mobility (natural flexibility) of the foot and weight gain.

This permanent change in foot size is more common than we think! The permanent change is caused by the plantar ligaments that support the longitudinal arch of the foot becoming stretched and permanently lengthened. This in turn leads to flattened or collapsed arches, which can potentially lead to foot, ankle, knee and hip pain over time.

The actress, Denise van Outen, mentioned after the birth of her daughter a few years ago, that her feet grew from a size five to six while she was pregnant, and have stayed that size since – she had to give away most of her designer shoes as they no longer fitted!

If you have noticed that your feet have permanently increased in size after you’ve had your baby, with your middle arch starting to flatten out, goPhysio could help. With our GaitScan system, we can assess your new foot position and if it would help you, provide you with a pair of custom made orthotics which will help support the arches of your foot and relieve the pressure on other structures higher up in your leg. In the future this will help prevent long-term adaptations being made by your body which can result in other problems, such as back, pelvic & hip pain. As a new Mum, with little time to rest, you’ll certainly be on your feet a lot more and this isn’t likely to change for many years to come. Looking after your body and being pro-active in preventing issues is key. If you’ve already noticed aches & pains, custom made orthotics will help reduce these.

If you have any questions about how we can help with foot pain during pregnancy, pop in to see us or give us a call!

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Antonia Perez
Antonia Perez
2023-11-25
We got an appointment promptly, the appointment went smoothly. Very nice physios. 👌
Fran Helen
Fran Helen
2023-11-06
Really knowledgeable and supportive, with clear advice to help. I feel so reassured after this appointment, highly recommended, they really listened to me. Thank you.
Brenda Hinnell
Brenda Hinnell
2023-10-27
First visit and in urgent need of physio as really suffering from not being able to run. Lottie was very patient and understanding with a lovely manner. She worked wonders and I am looking forward to my next visit.
James Grierson
James Grierson
2023-10-21
Great first appointment, really listened to my problems annd thorough anssessment and have come up with a clear rehab plan to get me back on track.
Nuisha Russo
Nuisha Russo
2023-10-21
I had a really good visit to GoPhysio. I have had sciatica for two months and it wasn't showing any signs of improvement. Sophie gave me a thorough assessment and then provided acupuncture and ultra sound. After one visit my sciatica has almost gone. I am really pleased.
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kay luffman
2023-10-08
Everyone at go physio is so helpful & friendly. I have been receiving treatment for golfers elbow from Hannah Gelder, and couldn’t be happier, I wish I had gone earlier! She explains everything well, and guides you through exercises etc. very amiable and makes you feel at ease. Highly recommend
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2023-10-07
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2023-10-05
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Christine Raw
2023-10-05
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Kay Horton
Kay Horton
2023-10-05
I have been attending goPhysio for about two years. As a company they are very professional and provide a very good level of service to include efficiency and courtesy and are always consistent in their approach. This very much includes the admin /reception team whom are the first people you make contact with. My Physio has excellent knowledge and has assisted me with sound advice and ongoing exercise regimes which are achievable and realistic. This has supported me well in between appointments. Although always busy I am normally able to see Roz at a mutually convenient time. Thank you to all the team