No. of patients

%

Primary amenorrhea

Secondary amenorrhea

Oligomenorrhea

Chromosomal abnormalities

16

18.9

11

5

-

Pure gonadal dysgenesis

1

1.1

-

1

-

Ovariectomy

11

13.5

-

11

-

Radiotherapy

2

2.4

-

2

-

Savage syndrome

1

1.1

-

1

-

Werner syndrome

1

1.1

-

1

-

Autoimmune disorder

5

6.0

-

5

-

Viral disease

1

1.1

-

1

-

Idiopathic

47

55.3

-

33

14