Causes of low sperm motility

Causes of low sperm motility: Low sperm motility should be identified as much as possible, such as infectious factors, trace element deficiency, and other nutrient deficiencies. According to the fifth edition of the World Health Organization, if the sperm survival rate is less than 40%, it is considered low sperm motility; if the forward movement speed is less than 32%, it is considered asthenospermia. The causes of asthenospermia are complex: first, related to infectious factors; second, related to the lack of some trace elements; Third, and endocrine changes, such as low androgens; fourth, and some nutritional metabolism of the substance lack, such as lack of vitamins, some carnitine, etc.; these factors can affect sperm motility, so that sperm motility decline is one of the main reasons for male infertility at this stage, the proportion is also the largest. Therefore, men must protect sperm.