Evaluate the efficacy of the pills on the patients selected for decreased quantity and quality of sperms at Da Nang Traditional Medicine Hospital. Methods: Clinical study, pre- and post-treatment, of the medicinal pills. Results: After 3 months of treatment, 68% of the patients responded well to the therapy, 22% yielded acceptable results and 6% had moderate outcomes, while only 4% responded poorly.Conclusion: Sam nhung tan duc don pills exert effective therapeutic results (after 3 months) on the quantity and quality of patients with decreased sperm of Kidney Yang Deficiency Syndrome.,