The following are the types of hypothyroidism -
Primary hypothyroidism is the most common type of hypothyroidism. It occurs when the dysfunction is in the thyroid gland itself.
Central hypothyroidism
Secondary hypothyroidism occurs when there is dysfunction in the pituitary gland.
Tertiary hypothyroidism results from hypothalamus disorders.
Subclinical or Underactive Thyroid is the early form of thyroid failure when T4 levels are still normal. It is seen in 3-8% of the…