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Obesity has been proposed to affect male fertility both directly and indirectly, by inducing hormonal profiles. Male factor infertility is associated with a higher incidence of obesity. The link between obesity and low testosterone levels is found in men at all ages, even in young men and teenagers. The relationship between obesity and testosterone level in men is complex and bidirectional. This article is aimed to share the information about the cause and effect of obesity on serum testosterone level.
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