Low TSH levels may suggest hyperthyroidism, which causes symptoms like weight loss and increased appetite. High TSH levels can be a sign of hypothyroidism, with symptoms like weight gain and fatigue.

A TSH blood test can help your doctor determine if your thyroid gland is working as it should. In cases of hyperthyroidism, TSH levels usually fall below 0.4 mIU/L, indicating an overactive thyroid.

Earlier this fall, Medscape Medical News spoke to endocrinologists Angela M. Leung, MD, and Karen Tsai, MD, on how to interpret abnormal results of thyroid hormone tests. To address some additional ...

Kainat is an aspiring future doctor currently in 4th year of medical school with more than 2 years as a writer for health and wellness. Throughout her medical school, she has participated in different ...

Hyperthyroidism affects TSH levels, causing them to fall below expected ranges. Hyperthyroidism can occur when the thyroid gland in the neck produces too much thyroid hormones, including ...