Metabolic Syndrome and Male Infertility

Inclusion Criteria: * 18 to 45 years-old man * man consulting for primary or secondary infertility, with or without earlier notion of paternity * patient insured with a social security scheme * patient who have had a prior medical consultation * patient who have done informed and written consent to participate in the research study Exclusion Criteria: * patient with problems understanding French * patient smoking more than two-pack-a-day * patient monitoring for viral risk. * man with an unidiopathic infertility which may be explained by: 1\) identifiable factors in direct questioning at the sperm analysis: * exposure to toxic products * infectious disease history * pathological anatomical background 2) factors identified at the etiologic investigation: cytogenetic and genetic