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Weight loss injections/treatments

Discuss weight-loss injections and treatments, including personal experiences. Mumsnet hasn't checked the qualifications of anyone posting here. You may wish to speak to a medical professional before starting any treatments.

Weight loss injections: How did weight loss affect your breast size?

63 replies

ThatAgileMintBiscuit · 20/03/2026 22:52

ey ladies,
Hope you don’t mind me asking—just looking for a bit of real-life experience and reassurance. I’m really tempted to start WLI next week, but feeling a bit nervous.

I’m 5ft 1 and about 11 stone, so technically in the “obese” BMI category. I’m currently a 36FF, and a big part of my hesitation is what weight loss might do to my boobs.

For those who’ve lost weight (especially fairly quickly), how did it affect your breast size and shape? I’m a bit worried they’ll sag or droop a lot, and it’s honestly putting me off a bit—even though I’m already getting quite a bit of backache from them as it is.

Would really appreciate hearing your experiences 💛

OP posts:
InfoSecInTheCity · 21/03/2026 09:42

OneThirdLess · 21/03/2026 09:23

40E to 32C. They look awful, TBH. So wrinkly, like little hairless scrotums attached to my chest. I am sad about it, but still - if I'd known this is how they'd turn out before losing - I'd still have done it.

Yep. The state of my boobs in no way negates the huge benefits in overall body appearance, health improvements, mobility and just general confidence. If I had the time and the ability to set aside 3 months for healing I’d get a body lift and boob job, thighs and upper arms too but as it is wearing shorts and an elbow length sleeve hides all the evidence of previous obesity and makes me feel like I look good so it’s easy enough to work with.

MrLarsonsNailGun · 21/03/2026 10:52

You are exactly where I was when I started them last year, in terms of height, weight and bra size.

I lost three stone and it honestly feels brilliant, I had no idea how unhappy I was at a larger size.

Bra size has reduced slightly, I’m down 2 band sizes too, they aren’t what they were but still look fine. My weight loss has come post children though, and I’m pushing 40. If you are younger, don’t have kids, lose weight more slowly (lost mine in 6 months) then that can make all the difference.

OrlandointheWilderness · 21/03/2026 11:02

Ten stone off here. 42E to 34D. They are in proportion, not particularly saggy or anything!

Overtheatlantic · 21/03/2026 11:13

I’ve lost 3 stone since July and my breasts have reduced by a cup size. Sort of. I have lost more volume in the left than the right and it’s quite noticeable when I’m nekkid. I’m hoping they will sort themselves out and even up. I do have dense tissue which I think has helped maintain the overall shape.

Wowzel · 21/03/2026 11:22

I lost 2.5 stone and went from 32H to 30GG

They are less full but not so bad

bugalugs45 · 21/03/2026 11:28

I went from a 36F to a 34D , no sagging at all but then again ( luckily I guess ) they never did in first place .
I wish I’d kept more of my boob as I preferred them fuller, but obviously can’t choose where you lose it from ,yes I’m looking at you belly …

JBJ · 21/03/2026 11:39

8st loss and have just remeasured as all of my bras suddenly seem huge! 38J to 34H, so down 2 band and cup sizes. I don’t appear to have lost much volume in proportion to the rest of me, but they’re definitely squishier!

Maydaymarion · 21/03/2026 12:02

I'm like @InfoSecInTheCity ,gone from big busted 36 DD which I actually liked! To more or less flat chested, they are droopy too, but I haven't done a to mitigate it, so no hrt or specific exercise in that area.
I used to dress up my bust to keep attention away from my gut but now I look completely different in clothes, it somehow looks more chic to not have massive boobs.

Willowy2 · 21/03/2026 12:27

Enormous boobs to teeny tiny ones and I'm very happy. No idea what size I was before or now as I've never worn proper bras. 5.5 stone loss, each boob was at least as big my head, now I have a tiny handful. I also do alot of heavy chest work in the gym.

Disturbia81 · 21/03/2026 13:18

I went from huge watermelons to small ones and yes the skin is wrinkled when I gather them in my hand, HOWEVER they are much perkier than when I was 9.5 stone heavier as the weight isn’t dragging them down. My nipples face up and forward instead of pointing at the ground! Also I use weights now and it’s definitely helping having more muscle in my chest.
Don’t let it put you off! Wearing small bras and whatever clothes I want is amazing! Not having a matronly bust that makes me look even bigger.
And not that I live my life by what men think but men love having soft boobs to play with and have never been disappointed.

Littlebitpsycho · 21/03/2026 13:46

Another who has decreased band size but not cup size. Just under 5st lost, gone from 36HH to 32HH

VelociraptorsVelociRapping · 21/03/2026 13:51

Littlebitpsycho · 21/03/2026 13:46

Another who has decreased band size but not cup size. Just under 5st lost, gone from 36HH to 32HH

That’s three cup sizes down Smile

MrsTravelBug · 21/03/2026 13:53

I lost 2.5st and went from a 32DD to a 30C and I absolutely hate what’s left, they are just empty flaps, like two peanuts in a pair of tennis socks. They weren’t great to start with though, I was never blessed with full shapely breasts sadly.

WeAllHaveWings · 21/03/2026 14:21

I've gone from 42GG to 32H, but now fastening on tightest hooks and a little baggy in the cup again so possibly due to go down another band size / maybe a cup too. So I reckon maybe 4-5 cups down....

At 57 years old and over 9st down they are not pretty when running free.

Hoisted and manipulated into a decent, properly fitting, supportive bra the shape isn't bad dressed, better and more comfortable than the heavy monstrosities that were there before, I'll just avoid any crinkly cleavage revealing tops.

MrsMiagi · 22/03/2026 08:16

38F to 34D. Sad sacks. No volume at all and i dont like them. Still better than being almost 6 stones fatter.
I do need to be measured again though, i think i am a smaller size now

whattheysay · 22/03/2026 08:37

I’ve lost 7 stone (not on wli but all weight loss is weight loss) I went from 38GG to 32G/GG. The are not pert in the slightest and without clothes do not look great but in a bra and clothes they look lovely, I do have to scoop them in though and make sure all underarm and back fat is pulled in too !

RufustheFactuaIReindeer · 22/03/2026 08:46

I have been on them for 6 months or so, have lost 2 stones so obviously quite a slow loss

started at 34GG and am now 32GG, i have deffo lost fullness but I am 57 this year so part of that will be down to aging….

RufustheFactuaIReindeer · 22/03/2026 08:48

I am amazed that i went down a band size, never happened before with weight loss

also lost weight from my wrists 😳 and ive always had slim wrists.

LadyClumber · 22/03/2026 08:53

I lost 3.5 stone. I was spilling out of 36 E bras when I started. Am now wearing 30 C bras. My breasts have lost volume but I look much more in proportion (I’m 5ft) and clothes fit (and look) much better on me now. For context, I am 63 and breastfed my children so they were never going to win any prizes for pertness!

PissedOffNeighbour22 · 22/03/2026 09:44

I lost 6.5st and although I’ve never really lost weight from my boobs from previous weightloss, on MJ they practically disappeared. I was a 38GG and am down to a 32F which I’m gutted about.

They lost all their volume and shape but they’re not saggy. They look hideous when I lie down though and it makes me more sad when I read that others haven’t lost their boobs on MJ. My bum has gone too.

I only know one other person on MJ and she’s lost her boobs and bum at a similar ratio to me.
The last time I was this weight many years ago I was a 34G.

Disturbia81 · 22/03/2026 10:19

I can’t recommend weights for bum and boobs enough.. I’ve always had a flat arse but squats changed that and chest workouts have given my boobs lift. Also a padded bra works wonders.

whattheysay · 22/03/2026 12:38

PissedOffNeighbour22 · 22/03/2026 09:44

I lost 6.5st and although I’ve never really lost weight from my boobs from previous weightloss, on MJ they practically disappeared. I was a 38GG and am down to a 32F which I’m gutted about.

They lost all their volume and shape but they’re not saggy. They look hideous when I lie down though and it makes me more sad when I read that others haven’t lost their boobs on MJ. My bum has gone too.

I only know one other person on MJ and she’s lost her boobs and bum at a similar ratio to me.
The last time I was this weight many years ago I was a 34G.

I didn’t lose weight with mounjaro or any injections and I still lost all bum and have saggy boobs, it was also not that fast 7 stone over 2 years, so I don’t think it’s the injections it’s just weight loss.
No I didn’t do enough weight training and I’m old, but to be honest no amount of weight training will have given me tight skin, a peachy arse and perky full breasts

letshavetea · 22/03/2026 12:46

I’ve lost two and a half stone on MJ. I’ve lost slowly and I’m nearly at maintenance. I was in a (too tight) 34GG. Now in 34 G. Pleased with the weight loss overall. Clothes look so much better since I lost the back fat and overspill at the front and sides (underarm)!!

Disturbia81 · 22/03/2026 15:37

whattheysay · 22/03/2026 12:38

I didn’t lose weight with mounjaro or any injections and I still lost all bum and have saggy boobs, it was also not that fast 7 stone over 2 years, so I don’t think it’s the injections it’s just weight loss.
No I didn’t do enough weight training and I’m old, but to be honest no amount of weight training will have given me tight skin, a peachy arse and perky full breasts

It definitely works.

DottyMcDiet · 22/03/2026 15:49

Mine have definitely shrunk. I’ve lost 5 stone.

I was gutted when I realised that my favourite bra which always made them look majestic was now just gaping.

I’ve gone down from a 40F to a 38F.