Hello, I have gone through your query and understood the concern. The minimum motility needed to try for conception is 30-40 percent. Also, progressive motility of the spermatozoa is more important. Factors that may lead to impaired motility like a varicocele or other correctable medical problem should be detected and treated. Smoking, consuming alcohol, stress should be avoided. Proper rest, healthy diet and avoiding very hot bath and tight underclothing are some other measures that help. With very low motility ICSI is the method of choice to cause conception. Hope you find this information helpful. Take care.