摘要
Dear Editor, We read the paper by Hammoud et al. in the issue of Asian Journal of Andrology with great interests. This paper revealed that sperm concentration, sperm progressive motility, sperm morphology, and total progressively motile sperm count were lower in men with 25（OH） D 〉 50 ng ml-1 when compared with men with 20 ng m1-1 -〈 25（OH） D 〈 50 ng ml-2. Total sperm count and total progressive motile sperm count were lower in men with 25（OH） D 〈 20 ng ml-1 when compared to men with 20 ng ml 1-〈 25（OH） D 〈 50 ng ml-1. Therefore, they draw the conclusion that serum Vitamin D （VD） levels at high and low levels can be negatively associated with semen parameters.
Dear Editor, We read the paper by Hammoud et al. in the issue of Asian Journal of Andrology with great interests. This paper revealed that sperm concentration, sperm progressive motility, sperm morphology, and total progressively motile sperm count were lower in men with 25（OH） D 〉 50 ng ml-1 when compared with men with 20 ng m1-1 -〈 25（OH） D 〈 50 ng ml-2. Total sperm count and total progressive motile sperm count were lower in men with 25（OH） D 〈 20 ng ml-1 when compared to men with 20 ng ml 1-〈 25（OH） D 〈 50 ng ml-1. Therefore, they draw the conclusion that serum Vitamin D （VD） levels at high and low levels can be negatively associated with semen parameters.
