Background and Objectives: Gold is a heavy, valuable metal with valance of three. The most important applications of gold are in jewelrymaking, dentistry, electronics, various catalysers, mintage, as well as sports and military medals. Researchers investigated the effects of age, nutrition,  and chemical toxins on male fertility. This article aims to investigate some of the reasons behind the Islamic order concerning the decorative use of gold for men.
Material and Methods: In this cross-sectional study, semen samples from 25-35 year-old males were collected and a standard questionnaire was used to record medical information of the participants. Then, Perkin-Elmer method (1973) was applied to assess the amount of gold in semen samples with an accuracy of nanogram by flameless atomic absorption using carbon rod atomizer.
Results: Average gold content per unit of semen in non-goldsmith males was 92.2 ng/ml. The amount of gold content per unit of semen revealed a significant and logical relationship with percentage of natural motile and none-motile sperms. According to the data collected by the questionnaire, reduced fertility in male goldsmith population was significant.
Conclusion: The relationship between reduced sperm motility and increase in the amount of gold content per unit of sperm, in addition to the findings regarding a significant reduction in fertility rates among the jewelers of Tehran and Mazandaran provinces of Iran, may confirm the narratives of the Prophet Mohammad and the Shia Imams in prohibiting the use of gold ornaments or utensils for men.