<ul><li>Scientists at Semmelweis University in Budapest identify the major risk factors affecting the quality of sperm leading to infertility.</li><li>Pollution, smoking, varicocele, diabetes, testicular tumors, and age are the major factors that can damage the material of sperm, according to the study.</li><li>The study examined nearly 27,000 studies, making it the largest meta-analysis to date on the fragmentation of sperm's genetic material.</li><li>Smoking increases DNA fragmentation by an average of 9.19% compared to non-smokers, the study found.</li></ul>

Scientists identify risk factors that damage sperm lead to male infertility

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