Thyroid Cancer / Nodules & Hyperthyroidism Expert Forum
thyroid cancer and weight gain
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Questions in the Thyroid forum are answered by Mark Lupo, MD. Topics covered include Goiter, Graves Disease, Hyperthyroid, Parathyroid/Calcium Problems, Thyroid Cancer, Thyroid Nodules/Cysts, Thyroiditis, Thyroid & Pregnancy, Thyroid Stimulating Hormone (TSH), Thyroid Tests, and Thyroid Surgery.

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thyroid cancer and weight gain

I recently had my thyroid and lymph all removed.  My question is, after my first daughter was born, 1998, I didn't lose the weight. I used to be skinny and am now almost 40 pounds over weight.  However, after the surgery for thyroid my doctor showed me that my TSH levels since 1999 have been between 1.3 and 1.9.  Could developing thyroid cancer have interfered with me losing weight?  Right now I am on synthroid 150. and my TSH fluctuates between 8 and 14 and I have only gained 3 pounds in the 2 months since surgery.  I am confused.
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Thyroid cancer itself does not change weight.  Keeping the TSH optimal will eliminate any influence thyroid dysbalance has on your weight. Your TSH is a high for this situation -- target is no more than 0.5 from what you describe (Cancer w/ lymph nodes, etc).
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Thyroid & Endocrine Center of Florida
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