Clarify Auto Immiune Thyroidism

[Ian555]

Please someone clarify for me. My TSH levels are 26.5 my cholestrol 312. Originaly a pri med Doctor told me I had a underactive thyroid. She referred me to another doctor. This a doctor of internal medicine and pulmonary. This doctor done a ultrssonic scan on my throat and a nuclear uptake and more blood work. The diagnosis was auto immuine thyroidism and also my liver is producing to much cholestrol. Now I read that auto immuine thyroidism is underactive is that correct and if so why would my doctor prescribe me crestor. I read the crestor cautions and it warned of taking this with a underactive thyroid. I have a appointment with a endocronicalgist in two weeks please someone give me some advice on what I should ask the doctor or what I should do. I am 35 year old male in good shape with a very good diet and lots of cardio exersize. Please help me

[Ian555]

Thank you very much for responding to my question. This is the answer I was hoping for.

[Mark Lupo, M.D.]

The most common cause of low thyroid is autoimmune (hashimotos).  The high cholesterol is due in part to decreased liver receptors for cholesterol in the setting of hypothyroid.  My advice: fix the thyroid first, then consider lipid medications.  THere is an inc'd risk of muscle damage due to crestor type meds in patients with untreated hypothyroidism.