Etiologies of hypothyroidy

Number

(n = 49)

Proportion

(%)

Post thyroidectomy

21

42.9

Thyroiditis

17

34.7

Synthetic antithyroid drugs

4

8.2

Radioactive iodine

3

6.2

Endemic goiter

2

4.0

Congenital

1

2.0

Centrale

1

2.0

Total

49

100