My breasts are shrinking from working out, has this happened to anyone?

I'm facing a bit of a dilemma regarding exercising. I am not at all fat, I am actually on the thinner side. However, I was un-toned and wanted to change that. My problem with getting in shape, is even though the rest of my body is looking better, I noticed my breasts look smaller. I've always had a smaller chest, just because I am tall and slim, but now they are even smaller. I feel very insecure about it. When I was toned in the past, I was a 36A. After gaining a little weight and not working out, I became a 36B. Now I am somewhere in between, and I don't want it to get worse. My boyfriend hasn't said anything, but I still hope he isn't getting disappointed. Girls, has this happened to you? And guys, if this was your girlfriend, how much would it bother you?
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Most Helpful Guys

  • So many women are trying to stay fit and notice this after just a short while working out. your breasts can shrink after exercise just like they can shrink after breastfeeding or after pregnancy...

    You can try some of these options:

    1) eat more milk, cheese, soy, meat etc.. these foods contain hormones similar to estrogen that help develop breast tissue and keep it healthy

    2) use a pushup bra, it won't actually make your breasts bigger but hey, 99.9% of guys will never know!

    3) use a breast enhancer to increase your breast size back to what it was

    there are quite a few good ways to increase your breast size or at least increase the appearance, my aunt after breastfeeding and lots of working out had some shrinking so she used a product she saw on Oprah and it worked really well to stop the shrinking.. just remember beauty is on the inside an people should still love and respect you no matter what happens as you age!

    • I agree with you about your first tip... eating more milk, cheese, soy, meat etc.. these foods contain hormones similar to estrogen that help develop breast tissue and keeps it healthy... I was overweight and dropped 35 kg and my breasts disappeared... I was told about your tip by a female personal trainer and I can happily say my breasts grew and the rest of my body was slim and toned...i have been that way for 4 years now...

  • As a guy with a thin, toned girlfriend with small boobs, I say work out and don't worry about your breasts! Even though you were thin to begin with, working out is still going to reduce body fat, including fat in your breasts (breast tissue is mostly fatty). I would think that your improved fitness is going to totally outweigh any change in boob size. I'd also encourage you to talk to your boyfriend. He may well not have noticed--but ask him for his support. If he can't or won't give you that, he needs some re-education, fast. I suppose you could wear a padded bra or something, but I don't know much about those alternatives! Besides, I'd want it off in bed where it really matters anyway. Good for you for getting in shape.

Most Helpful Girls



  • This happened to me. I started working out insanely, swimming, jogging. I went to the gym twice a day when I could. After about a month of this I realized that every sports bra I had put on in that week fit a lot looser. So I stood in the mirror one day after a bath and I was in shock. It's crazy but I hadn't paid attention. I never ever stand in front of the mirror naked and I just hadn't noticed.

    My guy and I had not seen each other in that month and when he did see me, He actually made mention of it. I felt terrible.

    I cut down my workout routine, stopped certain exercises and believe it or not, they got back fuller.

    • P.S. I'm not suggesting you stop anything, It's something I decided to do,

  • I was born with VERY large breasts, so when I started weight training all it did was lift my boobs up & make them even prettier! Sorry my answer sucks XD

    • You were BORN with large breasts? That DOES seem odd... LOL.

    • Haha! PS - screw the jealous haters who thumbs downed me! XD

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What Girls & Guys Said

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  • Assuming I was your boyfriend, it wouldn't bother me at all, as long as you'd still let me play with them. So don't let any feelings of shame or regret tinge your 'playtime' because that, instead of the changing cup size of your breasts, could be what chills your relationship.

  • I like women to be in shape, and that means less fat, and less fat means smaller breasts.

    Only mamma's boys are obsessive about large breasts, so unless yoou are trying to atttract that kind of guy, don't worry about your breast size.

    We more mature guys will think you look just fine!

  • Slim with small breasts is my favorite.

    Some guys prefer a little more curve some less.

  • working out and reducing body fat is going to mean that some of that fat reduction may occur in your breast.

    Frankly for me I'm never going to frown on my girlfriend being in good shape and slight difference in boob size is a non-factor. Hopefully your boyfriend is with you for more than your 36b cups and won't break up with just because you drop a cup size or something.

  • You should try to find a healthy medium if it's bothering you.

    What sort of exercising are you doing?

    • I am doing everything healthily. I just gain and lose weight quickly in my breasts and not so much the rest of my body. I do cardio and pilates, and a lot of weight training but focused on my legs.

    • Ok your exact routine would help. Many say you cannot spot reduce, although to an extent I believe you can spot reduce (meaning target certain areas for fat loss instead of the entire body) So for instance you could do exercises that target your mid section and cut down on the cardio in order to retain more fat. Specifically in your breast.

  • I think there are pros and cons here. yes your breasts maybe smaller but you probably look nice from being tone. I can't really tell exactly what's going on without pictures though. I doubt it would bother me but this is hypothetical.

  • As a guy, it wouldn't bother me at all. Ur boyfriend first fancied you because you were thin and had small boobs. And now you're thin, small boobs but now toned too. What's not for him to like?!

  • The improvement in your body and your self-confidence that come with working out far outweigh any loss in breast size. Don't give it another thought.

  • Well considering the breasts' tissue is made of fat, I would not be as surprised as you are if it were happening to me...

  • You need to stop working out immediately.

  • "And guys, if this was your girlfriend, how much would it bother you?"

    As long as you still have nipples on them that I can suck on, you're good enough for me

  • This happens because breast tissue is mostly fat, and you cannot spot reduce when it comes to fat reduction.

    You lose weight, you lose fat, your boobs will get smaller.

    That's just a fact of life.