Typical Reference Range0,4–4,0 mU/l
UnitmU/l
What This Value Measures
TSH is a regulatory hormone from the pituitary gland that regulates the thyroid. It is the most important screening test for thyroid dysfunction.
Elevated Value
An elevated value may indicate an underactive thyroid.
Low Value
A decreased value may indicate an overactive thyroid.
Note: Different ranges may apply during pregnancy.
Reference ranges are typical guide values for adults and vary depending on the laboratory, measurement method, age and sex — always compare with the range stated on your own report. A value outside the range does not automatically mean an illness, and a value within the range does not rule one out. The trend and overall picture are usually more informative than a single value. The doctor's assessment is always decisive.