“…In male infertility, leucocytospermia is defined as the presence of > 1 × 10 6 leucocytes in per millilitre of semen and is the main cause of urinary tract infection and immune dysfunction (Liu, Liu, Wang, & Xinbo, ). And it is very common, and its incidence about 10%–20% in infertile men (Liu et al., ). In the semen of patients with leucocytospermia, excessive reactive oxygen species (ROS) such as H 2 O 2 caused by oxidative stress can cause the alterations of sperm motility and abnormal sperm quantity(Dada, Shamsi, Venkatesh, Gupta, & Kumar, ; Henkel et al., ).…”