There is a lot of misinformation out there about sperm quality and its impact on birth defects. Let's set the record straight: poor sperm quality can indeed cause birth defects.
Here's how it works: when a sperm fertilizes an egg, it brings with it half of the genetic material needed to create a new human being. If that sperm is of poor quality, it may have trouble penetrating the egg or may carry genetic abnormalities that can lead to birth defects.
So yes, poor sperm quality can cause birth defects. But it's important to keep in mind that this is just one factor among many that can contribute to these problems. Other factors include the mother's age, her health, and environmental factors such as exposure to toxins or radiation.
If you're concerned about your risk of having a child with birth defects, talk to your doctor. He or she can help you assess your risk and make recommendations for how to improve your chances of having a healthy baby.