Is the endometrium also thinner if the follicle is not mature?

Patient's question:

No

Doctor's answer:

The size of a normal mature follicle is 18-25mm. If it is below or above this standard, normal ovulation cannot occur. Factors that cause ovulation disorders include: central nervous system anovulation; hypothalamic anovulation; pituitary anovulation; ovarian anovulation; polycystic ovary syndrome