近年来,随着环境的恶化、工作压力的增加、生活节奏的加快,男性不育发病率呈上升趋势,其中影响最明显的是男性精子数量及质量在逐年下降[1]。目前临床上对于男性少弱精子症病因研究还不是很深入,在治疗上也没有非常有效的药物和方法[2]。左旋肉碱(L-carnitine)是一种类维生素物 In recent years, with the deterioration of the environment, the increase of work pressure, and the acceleration of the life rhythm, the incidence of male infertility is on the rise. The most obvious impact is that the quantity and quality of male sperm are declining year by year [1]. At present, the study on the etiology of male oligoasthenospermia is still not very in-depth and there are no effective drugs and methods in the treatment [2]. L-carnitine is a vitamins