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A member asked:

Since having thyroid cancer my tsh is now. lose to 0.1, however i am very fatigued. could this be the reason?

A doctor has provided 1 answer

Could be: With a history of thyroid cancer it's generally thought advisable to keep TSH around 0.1. TSH is the pituitary hormone that stimulates the thyroid . Keeping it low is to avoid stimulation of any cancer that may remain. But if your thyroxine dose is excessive [T4 level above normal range], that can cause fatigue.

Answered 5/11/2014

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Related Questions

A member asked:

56 yo woman. Always normal AST, ALT & ASP. Surgery 5 months ago for hysterectomy. Thyroid cancer 8 yrs ago, TSH recently 0.11. Now ALT 138 37-153. AST 20 10-35 ALT 31 6-29 from 2 weeks ago. Why the elevation? Don't drink?

A doctor has provided 1 answer

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Can a Thyroid ultrasound miss cancer? I had one that was normal a week ago but pcp says one side is enlarged. Abnormal TSH normal free t3t4 confused?

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Hx of papillary thyroid cancer, 13 months post TT and 11 months post RAI. Blood work done recently shows elevated thyroid peroxidase antibodies at 36, and my TSH is rising, now at 2.87. What could this mean? Possibility of recurrence?

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A member asked:

High TSH levels after thyroid cancer.Been on Synthroid (thyroxine) for 3 yrs and has been fine now all the sudden levels out of wack and lump in neck ?

3 doctors weighed in across 2 answers

A member asked:

My TSH varies- 4, 5.6, 2.7, 2.8 uIU/ml, while my FT3 is 4 and FT4 is 11 pmol/L. According to this, could my thyroid be a cause of my anx/depr/fatigue?

A doctor has provided 1 answer

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