Amenorrhea - Differential Diagnosis Algorithm Elevated FSH • Premature Ovarian Failure • Menopa use • Spontaneous Bleed With Progestin Challenge • Polycystic Ovarian Syndrome No Bleed With Progestin Challenge • Hypothyroidism • Hyperthyroidism • Diabetes Mellitus • Exogenous Androgen Use • Congenital Structural Abnormalities High Prolactin • Hyperprolactinemia Organic Cause • Congenital GnRH Deficiency • Infiltrative or Inflammatory Lesion • Tumors • Infarction • Empty Sella Syndrome • Apoplexy Failed Progestin Challenge • Functional • Hypothalamic • Amenorrhea • Weight Loss, Eating Disorders, Exercise, Stress, Prolonged Illness) #Amenorrhea #Differential #Diagnosis #Algorithm #endocrinology #causes
