Pengarang: Andrea R. Genazzani
Edisi: 1
ISBN/ISSN: 978-3-319-03494-2
Penerbit: Springer
Tahun Terbit: 2014
Tempat Terbit: Cham, Switzerland
Bahasa: English
No. Panggil: FRO
GMD: Text
A significant number of adolescents present menstrual irregularities during the first
2 gynecological years. The absence of menses is defined as amenorrhea and is
classified as primary or secondary. Primary amenorrhea (PA) is the absence of
menstruation in 16-year-old girls with developed secondary characteristics or in
14-year-old girls with no presence of secondary characteristics. Secondary amen-
orrhea is defined as the absence of menstrual period, for 6 months or more, in
women who had previously normal or irregular menses [1–4, 11].
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