This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pathology of Conception, Subject name: Gynaecology & Obstetrics
Cause of infertility in hypothyroidism... 
Select and explain. 
A. Decrease prolactin, B. Increasedprolactin, C. Both, D. None
B: Increasedprolactin
Answer: B: Increasedprolactin 
Explanation: Ans. is 'b' i.e., Increased prolactin "Hypothyroidism is also linked to causing an excess release of the hormone prolactin. Prolactin is a hormone that stimulates the production of breast milk and an overproduction of this hormone can cause irregular periods and a halt in ovulation. "