Does smoking cause infertility in males?

Yes, most definitely. As doctors at SCI Hospital, we strongly advise against smoking if you are trying to conceive, as it can significantly impact male fertility. The harmful chemicals in cigarettes can damage sperm in several ways: they can lower the sperm count, reduce how well the sperm can swim (motility), and affect their shape (morphology). Smoking can also damage the DNA within the sperm, which can lead to difficulties with fertilization or embryo development, and even increase the risk of miscarriage. Quitting smoking is one of the best steps a man can take to improve his fertility.