That's true; TSH only shows part of the story.
http://www.endocrineweb.com/tests.html

Oncologists are not trained in this and often don't care anyway. Endocrinologists are much more knowledgable, thorough and helpful.

Just because TSH and thyroid are in range does not mean they are in range for your age. e.g. Testosterone for a 40yr old should be 500-600. If it's 300, it's low even if 300 is normal range in the lab.

[quote=margaret_in_ma]Gary -

There are three levels in the blood that are tested for thyroid problems: TSH, T3 and T4. TSH seems to be the most common one that is tested although I had an endocrinologist who insisted that only showed part of the thyroid story so she always tested all three. My current doc only tests the TSH.

- Margaret [/quote]