32 results
Causes of Secondary Amenorrhea - Differential Diagnosis
 • Pregnancy
 • Endocrinopathies: PCOS, Hypothyroidism
 • HPA Dysfunction:
Causes of Secondary Amenorrhea ... Hypothyroidism • HPA ... Medications: Post-pill amenorrhea ... #Secondary #Amenorrhea
Menstrual Cycle Physiology: The Hypothalamic-Pituitary-Ovarian Axis
Estrogen, when released:
 • Negatively feeds back on the hypothalamus and
#MenstrualCycle ... pathophysiology #HPOA
Diagnosis of Primary Amenorrhea
A diagnostic approach to primary amenorrhea. (FSH = follicle-stimulating hormone; LH = luteinizing
Diagnosis of Primary Amenorrhea ... approach to primary amenorrhea ... PrimaryCare #Primary #Amenorrhea
Causes of Primary and Secondary Amenorrhea - Differential Diagnosis Algorithm
Primary Amenorrhea - No onset of menarche
and Secondary Amenorrhea ... Algorithm Primary Amenorrhea ... Pituitary Secondary Amenorrhea ... Primary #Secondary #Amenorrhea
Primary Amenorrhea Differential Diagnosis Framework

Workup:
 • β-HCG, TSH and PRL
 • Breast Tanner Staging
 • FSH,
Primary Amenorrhea ... khudhur_moh #Primary #Amenorrhea
Amenorrhea - Differential Diagnosis Algorithm
Elevated FSH
 • Premature Ovarian Failure
 • Menopa use
 • Spontaneous
Bleed With
Amenorrhea - Differential ... Hypothalamic • Amenorrhea ... Prolonged Illness) #Amenorrhea
A diagnostic approach to secondary amenorrhea. (DHEA-S = dehydroepiandrosterone sulfate; FSH = follicle-stimulating hormone; LH =
approach to secondary amenorrhea ... PrimaryCare #Secondary #Amenorrhea
Thyroid Disorders and Menstrual Cycle Function

Hypothyroidism
 • Polymenorrhea (increased menstrual bleeding) is more common
 • Oligomenorrhea
Hyperthyroidism • Amenorrhea
Clinical Effects of Large and Small Pituitary Tumours
Local complications - Headache, Visual field defect, Disconnection hyperprolactinaemia,
Galactorrhoea, Amenorrhoea ... libido, Hair loss, Amenorrhoea
Stress Dose Steroids - Indications and Dosing

SUPPRESSED HPA AXIS:
 prednisone >20mg/day x 3 weeks or more
Dosing SUPPRESSED HPA