The Evolution of a Female’s Buttocks – Ages 10 Years to 60 Years and Beyond Basics

Being born, growing up, aging and eventually dying are the stages of life that people experience. During these stages of life, one of the most important parts of the body responsible for our smooth movement (the buttocks), evolves in both shape and size.  The buttocks comprise the pelvis (bones), butt muscles (gluteal muscles), fatty deposits (subcutaneous fat) and the skin that holds everything in place.  The gluteal muscles are used for movement while the subcutaneous fat is an essential element in shaping the buttocks. The pelvic structure provides support for internal organs, like the uterus, that rest on top of it.

This article delves into the evolution of a female’s buttocks from the ages of 10 years to 60 years and beyond.

Related Post: The Anatomy of a Woman’s Butt 

General Effects of Aging

Genetics and hormones determine where the fat is to be stored in our bodies. Studies have shown that in women, the hormone estrogen is responsible for the distribution of fat mostly around the thighs and the buttocks. Women with high levels of estrogen have more fat stored in the thighs and buttocks while those with lower levels of estrogen have fat stored around the abdomen and the midsection (waist area). Estrogen levels in the female body increase during puberty and pregnancy and they fall gradually after menopause or when a woman stops menstruating. This means that as women age, the drop in estrogen levels leads to fat being stored around the abdomen and midsection.

Another effect of aging is the loss of muscle mass. Many researchers including Jan Lexell from the Lund University note that there is a gradual decrease in size or volume of muscle mass with advancing age. This decrease of muscle mass is replaced by fat and connective tissue. All this leads to a reduction in muscle strength. Many older individuals have impaired mobility, increased risk of falls and hip fractures and may require assistance with everyday activities. There’s no doubt that age affects the gluteal muscles just as it does other parts of the body.

According to a study conducted by Marcia Ponce de León and Christoph Zollikofe of the University of Zurich in Switzerland, the pelvises of females aged 70 and above were about 8% narrower than those of middle-aged females, suggesting that the female pelvis constricts in older adults. They identified the estrogen levels, which rise during puberty and decline later in life, as the likely cause of the widening and subsequent narrowing in the female pelvis. This is because estrogen is known to impact bone growth and development. They suggest that the changing shape of the female pelvis may provide a woman’s body with a wider birth canal and more structural support at other times.

Related Post: Do You Know the Shape of Your Butt? What are Its Implications on Your Health?

Other changes that occur to the buttocks as a result of aging include: loss of collagen and elastin in the skin making cellulite become more apparent (the skin loses it supportive connective tissue thereby losing youthful firmness); gravity’s constant downward pull makes the skin loosen and sag; the crease under the butt becomes longer as the butt begins to droop; and when the underlying structures lose their support due to all these factors, the buttocks lose their youthful appeal. The back side looks less round and less full as more of fat gets stored in and around the belly region.

Evolution of the Buttocks Through the Different Age Groups

In the sections that follow, we delve into the details of how the female buttocks evolve from birth to 70 years and beyond.

From Birth to 7 Years

When children are born, it is very hard to differentiate the butt of a baby girl from the butt of a baby boy. They look similar in structure and shape. A newborn’s shoulders and hips are narrow, the abdomen protrudes slightly, and the arms and legs are relatively short. The pelvis is narrow and non-supportive as the child can neither stand nor walk.

Newborns lose many of the above physical characteristics quickly. As the child grows and begins to walk as early as 8 months, the pelvis broadens and tilts, the sacrum descends deeper into its articulation with the ilia and the lumbar curve of the lower back develops. At this point, in comparison with the male pelvis, the female basin is broader and shallower; the birth canal rounded and capacious; the sciatic notch wide and U-shaped.

This gender difference begins early in life. From birth up to age six, the number and size of fat cells triple in both boys and girls, resulting in a gradual, and similar, increase in body fat. But after about eight years of age, girls begin gaining fat mass at a greater rate than boys do.

Ages 8 Years to 19 Years

From 8 Years of age, girls enter into the preadolescence stage where they begin gaining fat mass at a greater rate than boys do. Adolescence (puberty) begins to set in from the ages of 12 years onwards (or even earlier in some girls). This is the period of transition between childhood and adulthood involving biological, social and psychological changes. During this time, dramatic changes in the body are observed.

At the onset of puberty, a girl’s butt is small and firm and fat distribution is at its lowest. This is mainly due to the low estrogen levels. During the adolescent growth spurt, the rate of fat increase in girls almost doubles that of boys. In addition, higher levels of estrogen are produced causing the lower half of the pelvis to widen. This prepares the body for pregnancy and childbirth by enlarging the birth canal.

Fat (subcutaneous) tissue also increases to a greater percentage of the body composition than in males. The fat accumulates in the typical female distribution fashion in the breasts, hips, buttocks and thighs. This general acceleration in body fat accumulation, particularly sex-specific fat, is attributed mostly to changes in female hormone levels. The result is a female body shape with the fat going to the buttocks giving them more shape and curve.

The new hormones may bring along unwanted side effects for example, one might get pimples on their butt. Usually they are similar to the ones you would get on your face, but other times it may be folliculitis, which is an infection of the hair follicle. This can be treated easily just from normal cleansing.

Ages 20 Years to 29 Years

After adolescence, the accumulation of sex-specific fat more or less stops, or decreases dramatically. By 20 years of age, the shape has formed and one may have a lot more fat back there. The hormones that came along with puberty will have given a female more traditionally woman-like shape and she might even have more fat in her butt, making it look rounder and popped out effortlessly.

Throughout most of their lives females have a higher percentage of body fat than males. By 25 years of age, for example, healthy-weight women have almost twice the body fat that healthy-weight men have.

The 20’s is the decade to make sure that the butt stays rounded, firm and toned to ensure that in your 40’s, you still have a strong butt. One can do this by incorporating butt exercises into their workout regimen.

Ages 30 Years to 39 Years

Research has shown that once a woman hits her 30’s, it’s all downhill for the butt. In this decade, the body starts to lose muscle mass and tone. In addition, the skin cell turnover and collagen production starts slowing down and she may start losing firmness and that bounce and smoothness she used to have on her butt. This can result in drooping, sagging and wrinkling.

This is the best time to incorporate butt exercises in your workout regimen if you had not done so. Doing squats and lunges and sitting less should be the top butt-related priorities. Keep moving your body and toning up as much as you can.

Ages 40 Years to 49 Years

In this decade, your estrogen levels are starting to dip and you may notice sagging and fat in your hips. This makes your butt look less perky. However, if you keep doing butt-focused workouts and are eating pretty clean, you can totally keep your glutes in shape, lifted and tight.

The main challenge in your 40s is to try and maintain your overall tone so that when your hormones change at menopause, they won’t affect the butt as hard as they could if you slacked off. Doctors say that that lunges, squats, and other butt workouts can help keep an already lifted and shapely backside intact. This is important because with your 50s comes a significant change (in hormones) that will have quite an effect on your butt.

Ages 50 Years to 59 Years

The average onset of menopause is 50.5 years, but some women enter menopause at a younger age, especially if they have suffered from cancer or another serious illness and undergone chemotherapy. During the menopause period, your estrogen levels continue to fall. This definitely has an effect on your butt: not only are you losing fat in your butt, which could make it look flat, but also you are losing your muscle and tone leading to drooping. It’s around this time that backsides tend to look a bit flatter. The drop in estrogen also puts more fat around your stomach and hips.

Keeping up those butt exercises is crucial to prevent loss of tone, and since your fat distribution is about to make you gain some fat in your stomach and hips, your diet will become even more important. Keep moving and also squeezing. It’s recommended that you keep up the posterior exercises. No need to cut them off and just let everything fall apart. Your body still needs a strong backside.

Ages 60 Years and Beyond

In this age group, you have finally made it through menopause, but that doesn’t mean you should stop working out your butt! Strong glutes will give your back and hips support that you really need at this age. It’s also around this time that you’ll see how much all those years of butt exercises have helped you.

Your butt may be older than it once was, but if you’ve been working it out and standing rather than sitting as much as possible, your strong butt will help prevent you from falling so you can be just as active now as you always were. In fact, a tight and toned butt is critical to provide the support your body needs as you age.


  1. I am sure this piece of writing has touched all the internet users, its really
    really fastidious article on building up new

  2. Hi there, I read your new stuff daily. Your story-telling style is witty, keep doing what you’re doing!

  3. its wonderful as your other blog posts : D, thankyou for posting.

  4. Spot on with this write-up, I absolutely believe this web site needs much more
    attention. I’ll probably be back again to read
    more, thanks for the info!

  5. I’m really impressed with your writing skills and also with the layout on your blog. Is this a paid theme or did you modify it yourself? Either way keep up the nice quality writing, it is rare sex see a great poker like this one these days..

  6. Great blog! Do you have any tips and hints for aspiring
    writers? I’m planning to start my own website soon but I’m a little lost on everything.
    Would you advise starting with a free platform like WordPress or go for a paid option? There are
    so many choices out there that I’m totally confused .. Any ideas?

    • Avatar Buttpedia Editor Says: October 11, 2018 at 6:40 pm

      Thank you. Running any blog takes a lot of work. You need to consistently churn out new content. Unfortunately this is not always possible. You do not need any expertise in programming. There are so many great videos on you tube that can teach you how to blog. As long as you have an idea of what you want to blog about and you have the passion, I would say go for it. With regards to the content management system, I personally find WordPress easy to use and its cheap. I have not had an experience with other paid options. Good luck

  7. I visited several web sites however the audio quality for
    audio songs existing at this website is in fact superb.

  8. Its fantastic as your other posts : D, regards for putting up. “To be at peace with ourselves we need to know ourselves.” by Caitlin Matthews.

  9. Great awesome issues here. I am very glad to see your article. Thank you so much and i am looking forward to contact you. Will you please drop me a mail?

  10. certainly like your website but you have to take a look at the spelling on several of your posts. Several of them are rife with spelling issues and I in finding it very bothersome to tell the reality however I¦ll surely come back again.

    • Avatar Buttpedia Editor Says: September 16, 2018 at 9:00 pm

      Noted and corrected. If you notice any more, kindly point them out to us. We appreciate your valuable feedback.

  11. When someone writes an post he/she keeps the image of a user in his/her mind
    that how a user can know it. So that’s why this post
    is perfect. Thanks!

    • Avatar Buttpedia Editor Says: August 1, 2018 at 12:39 pm

      Thank you very much for your kind words. Looking forward to having you around some more. Please subscribe to receive updates.

  12. Heya i’m for the first time here. I found this board and I
    find It really useful & it helped me out a lot. I hope to give something back and aid others like
    you helped me.

    • Avatar Buttpedia Editor Says: August 1, 2018 at 12:39 pm

      Thank you very much for your kind words. Looking forward to having you around some more. Please subscribe to receive updates.

  13. This is my first time go to see at here and i amm really impressed to read all
    at alone place.

    • Avatar Buttpedia Editor Says: August 1, 2018 at 12:39 pm

      Thank you very much for your kind words. Looking forward to having you around some more. Please subscribe to receive updates.

  14. Thanks in favor of sharing such a pleasant opinion, paragraph is pleasant, thats why i have read it entirely

  15. I couldn’t resist commenting. Very well written!

  16. I got this web page from my pal who told me regarding this site and at the
    moment this time I am visiting this website and reading very informative articles or reviews
    at this place.

    • Avatar Buttpedia Editor Says: June 30, 2018 at 8:03 pm

      Thank you very much for your kind words. Looking forward to having you around some more. Please subscribe to receive updates.

  17. When I initially left a comment I seem to have clicked the -Notify me when new comments
    are added- checkbox and from now on whenever a comment is added I recieve 4 emails with the exact same comment.
    Is there a means you can remove me from that service? Many thanks!

    • Avatar Buttpedia Editor Says: June 30, 2018 at 8:06 pm

      Am so sorry to hear this. Please check at the bottom of the any of the emails you have received so far. There is usually an option to unsubscribe from receiving notifications. Unfortunately from my end I cannot be able to remove you.

  18. Stunning story there. What occurred after?
    Take care!

    • Avatar Buttpedia Editor Says: June 30, 2018 at 8:09 pm

      Thanks for spending time to read this article. Well, beyond 60 years, the butt just continues to age.

  19. Hello there! This is my first comment here so I just wanted to give a quick shout out and tell you I truly enjoy reading your articles.
    Can you recommend any other blogs/websites/forums that deal with the same topics?
    Appreciate it!

    • Avatar Buttpedia Editor Says: June 30, 2018 at 8:12 pm

      Hi Poker. Thank you for spending time to read our articles. Am glad you find them enjoyable. With regards to your question about other blogs/websites/forums that deal with the same topics, I have seen communities on Reddit discussing the female bum. I haven’t come across any other sites that are dedicated to female bums.

  20. Hmm it appears like your website ate my first comment (it was super long) so I guess I’ll just sum it up what I had ritten and say, I’m thoroughly enjoying your blog.
    I as well am an aspiring blog writer but I’m still new to the
    whole thing. Do you have any tips for newbie blog writers?
    I’d definitely appreciate it.

    • Avatar Buttpedia Editor Says: June 30, 2018 at 8:20 pm

      Thank you so much for your kind words. Am glad you enjoy reading this blog. I am not sure whether I am at the level of giving expert tips on blogging yet but i will tell you what works for me. I would say the number one thing that keeps me going is being passionate about writing and what i write about. Passion keeps you going even when you do not see any results from your work. Sometimes I take long breaks in between articles but I always find myself coming back to writing about butts. So, identify a niche that interests you and write away.

  21. Attractive part of content. I simply stumbled upon your blog and in accession capital to assert that I get actually enjoyed account your weblog posts.
    Anyway I will be subscribing on your feeds and even I achievement you access persistently quickly.

  22. 119583 692421Some actually marvellous function on behalf with the owner of this internet web site , perfectly excellent content material . 373172

    • Avatar Buttpedia Editor Says: May 17, 2018 at 6:13 am

      Thank you. Looking forward to having you around some more. Please subscribe to receive updates.

  23. write an essay for me

    Admiring the persistence you put into your site and in depth information you present. It’s nice to come across a blog every once in a while that isn’t the same out of date rehashed material. Excellent read! I’ve saved your site and I’m including yo…

    • Avatar Buttpedia Editor Says: April 17, 2018 at 10:20 am

      Thank you so much. Am deeply touched by your words. This has definitely encouraged me to continue doing more research and produce more content. Am truly humbled by your feedback.

  24. I constantly emailed this weblog post page to all my contacts, for the reason that if like to read it then my
    friends will too.

    • Avatar Buttpedia Editor Says: April 17, 2018 at 10:22 am

      Wow, thank you for being my ambassador. I really appreciate your time and the effort you have placed in putting my content out there. May you be blessed immensely. With all this amazing feedback, I will strive to better the site and make it even more useful and enjoyable to read.

  25. 127360 194711Could it be okay to write several of this on my small internet web site only incorporate a 1 way link towards the web site? 7364

    • Hi pHLA. We are honored that you would like to use the information in Buttpedia on your small internet website. Comments like yours are what keeps us motivated to write more. To answer your question, yes you can use the information and provide an acknowledgement to Buttpedia ( as the originator of the content. Please also link back to our website. Do you mind sharing your website link with us? We would also love to learn more about what you write on. Have a great day.

  26. … [Trackback]

    […] Read More Infos here: […]

Leave a Reply