Mnemonic: “INFERTILE”
I: Idiopathic
N: No ovulation (PCOS, menopause, pituitary disease, thyroid disorders)
F: Fibroids
E: Endometriosis
R: Regular bleeding pattern disrupted (oligo/amenorrhoea )
T: Tubal disease leading to blocked/damaged cilia
I: Increasing age >35 years
L: Large size (obesity)
E: Excessive weight loss (anorexia nervosa)