This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis and Infertility, Subject name: Gynaecology & Obstetrics
A couple having unprotected intercourse for one year and not able to conceive presents to infertility clinic. Woman has normal menstrual cycle. Semen analysis shows abnormal sperm morphology, low count and normal volume. Best next step would be: 
Select and explain. 
A. Perform HSG in woman, B. Check LH, FSH levels, C. Repeat test, D. Get a scrotal USG done
C: Repeat test
Answer: C: Repeat test 
Explanation: Ans. is c, i.e. Repeat testRef: Williams Gynae 3rd/ed, fig 19.11, p445If a semen analysis report comes abnormal then a repeat semen analysis should be done at 1 month interval. If that also comes abnormal then other investigations should be done.