Medical Oncologist
CION Cancer Clinics
Weight and metabolism after oophorectomy | CION Cancer Clinics
Many women gain weight after ovary removal, but the operation is only part of the reason. The loss of oestrogen moves fat towards the waist and makes the body handle sugar less well. Less movement during recovery, broken sleep and some cancer medicines add to it. This page explains what drives the change, which checks to ask for, and small steps that work. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- Does removing the ovaries make you gain weight?
- What actually causes the weight gain?
- How do you keep weight in check after the operation?
- What do the numbers on your check-up mean?
- What women are told about weight after surgery, and what is true
- What tends to work, and what tends not to
- What this page cannot tell you
- Common questions about weight after ovary removal
The short answer
Does removing the ovaries make you gain weight?
Many women do put on weight after ovary removal, but the operation itself is only part of the reason. The sudden loss of oestrogen changes where fat is stored and slows how the body uses energy a little. Less activity during recovery, poor sleep and treatment side effects usually do the rest.
The bigger change is where the weight goes
Before menopause, fat tends to sit on the hips and thighs. After the ovaries are removed it tends to move to the tummy. Some women find the scale barely moves but their clothes no longer fit at the waist. Fat around the waist matters more for health than fat elsewhere, because it is linked to diabetes and heart disease.
Muscle quietly shrinks
Weeks of rest after surgery and lower hormone levels both reduce muscle. Muscle burns more energy than fat even at rest, so losing it means the same meals now add more weight than before.
Why this is worth acting on early
Weight that builds up in the first year is much easier to shift than weight that has settled over several years. Small, steady changes made early usually work better than a strict diet started later.
What is behind it
What actually causes the weight gain?
Usually several of these together. Knowing which apply to you tells you where to start.
The hormone change
Lower oestrogen moves fat towards the waist and makes the body handle sugar less well. Blood sugar and cholesterol can rise even if weight does not.
Less movement
Recovery means rest, and rest often becomes a habit. Families in India often insist the woman stays in bed and is served rich food long after the wound has healed.
Treatment side effects
Some medicines add to weight or appetite.
Ask your doctor about
- Steroids given with chemotherapy
- Hormone-blocking tablets for breast cancer
- Some antidepressants and sleep medicines
Poor sleep and stress
Night sweats break sleep. Tired people eat more, especially sweet and fried food, and move less. Worry about cancer pushes the same way.
Treating night sweats can help weight indirectly.Not sure whether this applies to you?
Ask an oncologistA realistic plan
How do you keep weight in check after the operation?
Measure the waist, not only the weight
A tape measure around the tummy at the level of the navel shows the change the scale may miss. Check it once a month, same time of day.
Move a little more each week
Start with short walks once your surgeon clears you, and build to brisk walking on most days. Add light strength exercise to rebuild muscle.
Change the plate, not the whole diet
Half the plate vegetables, a quarter dal, egg, fish or paneer, a quarter rice or roti. Fewer sweets, fried snacks and sugary tea.
Get the blood tests
Ask for a blood sugar and cholesterol test in the first year after surgery, and at the interval your doctor sets after that.
On your report
What do the numbers on your check-up mean?
- BMI
- Body mass index, a rough measure of weight against height. For South Asian women the healthy range is set lower than for European women.
- Waist circumference
- The tape measurement around your tummy. It reflects fat around the organs, which is the kind most linked to diabetes and heart disease.
- HbA1c
- A blood test showing your average blood sugar over the past few months. It shows early diabetes before symptoms appear.
- Lipid profile
- A cholesterol blood test. It separates the harmful LDL cholesterol from the protective HDL cholesterol, and measures triglycerides, another blood fat.
- Metabolic syndrome
- A cluster of a large waist, raised blood pressure, raised sugar and unhealthy cholesterol together. It signals a higher risk of diabetes and heart disease.
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Commonly believed
What women are told about weight after surgery, and what is true
"Once the ovaries are gone, weight gain is unavoidable."
It is more likely, not fixed. Women who stay active, rebuild muscle and watch portions after surgery often keep their weight steady. The hormone change makes it harder, which is a reason to start early rather than a reason to give up.
"She needs ghee and rich food to get her strength back."
She needs protein and enough food to heal, not extra fat and sugar. Dal, eggs, curd, fish, paneer and vegetables rebuild strength. Heavy food on top of bed rest is how recovery weight starts.
"Skipping meals is the quickest way to lose it."
Skipping meals usually leads to overeating later and loses muscle along with fat. After cancer treatment, crash dieting can also slow recovery. Regular, smaller meals work better.
"HRT will make her fat."
Studies do not show that HRT itself causes weight gain. For women who are allowed it, it may help keep fat from moving to the waist. Whether it is safe depends on the cancer, so ask your oncologist.
Side by side
What tends to work, and what tends not to
Tends not to work
Tends to work
A strict diet started months later
Small changes to the plate started early
Walking only on weekends
A short brisk walk on most days
Weight-loss teas, powders and pills
Protein at every meal and fewer sweet drinks
Checking the scale every day
Measuring the waist once a month
Being straight with you
What this page cannot tell you
This page cannot tell you a target weight or a calorie number for you. Those depend on your height, your starting point, the treatment you are still having and your other health problems.
Who general advice does not suit
If you are still having chemotherapy, are losing weight without trying, or had surgery on the bowel, dieting advice may be wrong for you. Losing weight during active treatment can be harmful. Ask your team whether you should be aiming to lose, keep or gain.
Unexplained weight change needs a check
Sudden weight gain with swelling of the tummy or legs, or weight loss you cannot explain, should be reported to your doctor rather than put down to menopause. After cancer treatment these changes can have other causes that need a proper look.
What to ask at your next visit
Ask when your blood sugar and cholesterol were last checked. Ask whether any medicine you take adds to weight or appetite. Ask whether HRT is an option for your cancer. Ask when you can start brisk walking and strength exercise, and whether a dietitian can see you. Write the answers down so the whole family can follow the same plan.
Questions we are asked
Common questions about weight after ovary removal
How much weight will I gain after ovary removal?
There is no set amount, and some women gain none. The change in where fat sits is more predictable than the change on the scale. What you eat, how active you are, how well you sleep and which medicines you take make a bigger difference than the operation alone.
When can I start exercising after the operation?
Gentle walking starts within days. Brisk walking, lifting and exercise that strains the tummy wait until your surgeon clears you, which depends on whether you had keyhole or open surgery. Ask at your follow-up visit and build up slowly.
Why is my tummy getting bigger even though my weight is the same?
Lower oestrogen moves fat from the hips to the waist, and muscle is slowly replaced by fat. The number on the scale can stay steady while the shape changes. Measuring your waist shows it, and strength exercise helps.
Will HRT help me lose weight?
HRT is not a weight-loss treatment. For women allowed to take it, it may help keep fat from building around the waist and ease the night sweats that break sleep. Whether it suits you depends on your cancer, so ask your oncologist.
Are weight-loss injections safe after cancer surgery?
Newer weight-loss injections are prescription medicines with their own side effects and checks. They are not suitable for everyone, especially during active cancer treatment. Do not buy them online. Discuss them with your doctor, who knows your full history.
I am diabetic. Will this make my sugar worse?
It may. The hormone change makes the body handle sugar less well, and steroids with chemotherapy raise it further. Check your sugar more often in the months after surgery and tell your diabetes doctor about the operation so tablets can be adjusted if needed.
Should I see a dietitian?
It helps, especially if you are still on treatment, have diabetes, or had surgery on the bowel. A dietitian can plan meals around Indian food you already eat rather than handing you a foreign diet chart. Ask your team for a referral.
My thyroid is also low. Is that the reason?
An underactive thyroid can add to weight gain and tiredness, and it is common in women. It is not caused by ovary removal, but the two can happen together. A simple blood test checks it, and treatment is straightforward.
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Dr. C. Raghavendra Reddy
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Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
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Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
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Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
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Radiation Oncologist
Radiation Oncologist
Hematologist
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
Surgical Oncologist
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Sources
- NHS — Menopause
- NHS — Obesity
- NHS — Type 2 diabetes
- Cancer Research UK — Diet, healthy eating and cancer
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
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