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Clinical Tests of Estrogen Injections on Women with Abnormal Menstrual Cycles During the Early 1920s by Jean Paul Pratt and Edgar Allen
By: Brendan Van Iten
| Published: Apr 06, 2017
In the early twentieth century US, Jean Paul Pratt and Edgar Allen conducted clinical experiments on women who had abnormal menstrual cycles. During…
EstrogenEndocrinologyDoisy, Edward Adelbert, 1893-1986MenstruationUterus
Estrogen and the Menstrual Cycle in Humans
By: Brendan Van Iten
| Published: Jun 22, 2016
Estrogen is the primary sex hormone in women and it functions during the reproductive menstrual cycle. Women have three major types of estrogen:…
Menstrual CycleOral contraceptivesEstrogenEstradiolEstrone
Edgar Allen (1892–1943)
By: Brendan Van Iten
| Published: Jul 23, 2017
Edgar Allen identified and outlined the role of female sex hormones and discovered estrogen in the early 1900s in the US. In 1923, Allen, through his…
EstrogenHormones, SexOogenesisEstrusMenstrual Cycle
Amenorrhea as a Menstrual Disorder
By: Emily Santora
| Published: Aug 03, 2021
Amenorrhea is considered a type of abnormal menstrual bleeding characterized by the unexpected absence of menstrual bleeding, lasting three months or…
Amenorrhea, PrimaryMenstruation disordersMenstrual CyclePolycystic ovary syndromeBirth Control
Katharina Dorothea Dalton (1916–2004)
By: Bianca Zietal
| Published: May 24, 2017
Katharina Dorothea Dalton was a physician in England in the twentieth century who defined premenstrual syndrome (PMS) as a cluster of symptoms…
Premenstrual syndromePremenstrual TensionMenstrual CycleMenstruation
Endometriosis
By: Emily Santora, Jovanna Perez
| Published: Jun 21, 2021
Endometriosis is a medical condition that involves abnormal growths of tissue resembling the endometrium, which is the tissue that lines the inside…
EndometriosisSampson, John A. (John Albertson), 1873-DysmenorrheaMenstruation disordersReproductive Health
George Nicholas Papanicolaou (1883–1962)
By: Patsy Ciardullo
| Published: Apr 06, 2017
George Nicholas Papanicolaou developed the Pap test in the United States during the twentieth century. The Pap test is a diagnostic procedure used to…
Pap TestExfoliative cytologyCervical CancerMenstrual CycleUterine Cancer