Changes

*'''Primary amenorrhoea:''' The condition is characterized by absence of menarche even at the age of 16 years(i.e. after completion of childhood). It is mentioned as condition of“Shushka revati”[Ka. Sa. Kalpa Sthana 6/31]and “Shandhi yoni vyapad”.[Cha. Sa. Chikitsa Sthana 30/34-35]

*'''Primary amenorrhoea:''' The condition is characterized by absence of menarche even at the age of 16 years(i.e. after completion of childhood). It is mentioned as condition of“Shushka revati”[Ka. Sa. Kalpa Sthana 6/31]and “Shandhi yoni vyapad”.[Cha. Sa. Chikitsa Sthana 30/34-35]

In primary amenorrhea, a retrospective study concluded that Mullerian anomaly was the most prevalent etiological factor leading to amenorrhea followed by gonadal dysgenesis and racial, genetic and environmental factors could play role in the cause of primary amenorrhea.  

In primary amenorrhea, a retrospective study concluded that Mullerian anomaly was the most prevalent etiological factor leading to amenorrhea followed by gonadal dysgenesis and racial, genetic and environmental factors could play role in the cause of primary amenorrhea.<ref>Kriplani A, Goyal M, Kachhawa G, Mahey R, Kulshrestha V. Etiology and management of primary amenorrhoea: A study of 102 cases at tertiary centre. Taiwan J Obstet Gynecol. 2017;56(6):761‐764. doi:10.1016/j.tjog.2017.10.010</ref>

*'''Secondary amenorrhoea :''' After the establishment of menarche, some girls may experience a secondary amenorrhea which may extend upto many months or even years.

*'''Secondary amenorrhoea :''' After the establishment of menarche, some girls may experience a secondary amenorrhea which may extend upto many months or even years.