Background: Declining trend in semen quality is receiving attention worldwide. The aim of the study to investigate the role of lifestyle factors with respect to semen quality. Methods: Semen samples were collected from 351 male partners attending OPD of Obstetrics and Gynecology at civil hospital and IKD hospital, Ahmedabad, India. They were subjected to assess the quality of semen according to WHO criteria and semen quality were analyzed with respect to self reported history of tobacco smoking and/or chewing and alcohol consumption as lifestyle factors. Results: The result revealed that sperm count was lower in subjects with habit of tobacco smoking, chewing and alcohol consumption as compared to subjects without such habits and decline was found statistically significant among smokers. Total progressive motility and normal morphology percentage was significantly decreased in tobacco chewers compared to non-chewers. Further analysis of data with respect to alcohol consumption indicated non-significantly lower total progressive motility and normal sperm morphology percentage as compared to subjects with no such habit. Conclusion: The data obtained suggested, the role of lifestyle factors especially tobacco smoking and chewing in declining semen quality.
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