Define of Amenorrhea.Classify of it.

Definition of Amenorrhea : 

Amenorrhea  is the absence of menstruation. It is the symptoms, not a disease.  

Classify of Amenorrhea:

A. Physiological:

1. Primary amenorrhoea

*Before Puberty 

2.Secondary amenorrhea

*During Pg

*During lactation 

*Following menopause  

B.Pathological : 

1.Concealed:

 *Conjenital

* Acquired  

2.Real ( true):

*Primary 

*Secondary

                                                                                                                 [Ref-D.C .Dutta ]