Hypothyroidism Symptoms & Causes: Understanding an Underactive Thyroid

Hypothyroidism, or underactive thyroid, is a condition in which the thyroid gland does not produce enough thyroid hormone. This can lead to a variety of symptoms, including:

* Fatigue

* Weight gain

* Constipation

* Dry skin

* Brittle hair

* Cold intolerance

* Muscle weakness

* Depression

* Anxiety

* Difficulty concentrating

* Menstrual irregularities

* Infertility

* Goiter (enlarged thyroid gland)

In severe cases, hypothyroidism can lead to myxedema coma, a life-threatening condition characterized by extreme lethargy, low body temperature, and low blood pressure.

Hypothyroidism is diagnosed with a blood test that measures thyroid hormone levels. Treatment typically involves taking thyroid hormone replacement medication.