For patients with optic neuritis who have an increased risk of developing MS (on the basis of an abnormal brain MRI), many studies support the early use of medications aimed to reduce the risk of MS.
1 The normal size of the thyroid gland in adults is 4 to 4.8 cm x 1.0 to 1.8 cm x 0.8 to1.6 cm. 2  Its normal weight ranges between 15-25 grams.3  The weight of this gland grows heavier in women. 4  It escalates up to 50% during the early part of the menstrual cycle.imension & Weight Of Thyroid Gland. 1  The normal size of the thyroid gland in adults is 4 to 4.8 cm x 1.0 to 1.8 cm x 0.8 to1.6 cm.
Normal and Abnormal TSH Ranges. 1  0.4 mU/L to 4.0 mU/L is considered the reference range (there may be slight variation depending on the laboratory), and people who have a normally functioning thyroid gland usually fall within this range. 2  If TSH measures >4.0 mU/L, a second test (T4) is performed to verify the results.