Male infertility can stem from various factors, including medical, environmental, and lifestyle issues. Common causes include low sperm count, poor sperm motility, and abnormal sperm morphology. Medical conditions such as varicocele, hormonal imbalances, and infections can also contribute to infertility. Additionally, lifestyle factors like smoking, excessive alcohol consumption, and exposure to environmental toxins can negatively impact fertility. Understanding these causes is key to developing effective treatment plans and improving reproductive health. By identifying and addressing the specific factors contributing to infertility, individuals can receive targeted interventions that enhance their chances of conception and overall reproductive well-being.