This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
Which of the following is the most useful parameter according to WHO in assessing adequacy of sperms for feilization? 
Select and explain. 
A. Spermatocyte count, B. Spermatocyte motility, C. Semen volume, D. Spermatocyte morphology
D: Spermatocyte morphology
Answer: D: Spermatocyte morphology 
Explanation: Answer- D. Spermatocyte morphologyEvaluation and assessment of semen is very impoant for both diagnosis of male infeility and selection of patienti for treatment with IVF or ICSI. It has been shown that sperm morphologt assessed strictly is most strongly related to feilization rafe than other parometers. In the WHO guidelines for Normal semen analysis, Sperm morphology, ie. > 4% normal forms is the only strict criteria for sperm adequacy.