BACKGROUND/AIM: Infertility is defined as the inability to conceive after at least 1 year of unprotected intercourse. In about one third of infertile couples, a male factor is the primary problem. Thus, the present study aimed to determine the most common risk factors for @entity4810 in Iranian @entity1 . MATERIALS AND METHODS: This case-control study included 268 @entity1 attending an @entity249 clinic in Shiraz, Iran. In this study, 161 fertile @entity1 were compared with 108 infertile ones regarding risk factors such as smoking habits, drug consumption, @entity547 , varicocele, job, and BMI. The data were analyzed using logistic regression analysis and t-test. RESULTS: The mean age of the fertile and infertile @entity1 was 37.5    7 and 36.3    10, respectively. Our findings demonstrated a statistically significant relationship between @entity4810 and @entity547 , varicocele, taking @entity5616 , job, and BMI. With an increase of 1 cigarette per day, there was a 1% decrease in the motility of the sperm. Moreover, with an increase of 1 year of cigarette smoking, 800,000 sperm are lost. CONCLUSION: The results revealed varicocele and @entity547 as the most common risk factors in @entity1 attending the @entity249 clinics in Shiraz. In addition, strenuous work could cause @entity130 .

A case-control study of the factors affecting XXXX .

@entity1 :: ('9606', 'Species') :: ['participants', 'men'] @entity249 :: ('MESH:D007246', 'Disease') :: ['infertility'] @entity4810 :: ('MESH:D007248', 'Disease') :: ['male infertility'] @entity547 :: ('MESH:D006547', 'Disease') :: ['hernia'] @entity5616 :: ('MESH:D011899', 'Chemical') :: ['ranitidine'] @entity130 :: ('MESH:D014947', 'Disease') :: ['testicular injury']
@entity4810 :: (MESH:D007248,Disease) :: ['male infertility']
