Sperm covered glasses

Better have a microscope, because sperm are far too tiny to see with the naked eye. If you're concerned with avoiding pregnancy, using a barrier method like a condom is always a good idea. Manufactured by state-of-the-art precision engineering. Not so with in-vitro test tube fertilization. View this order. Keeping fit and free of a disease can ensure your sperm behaves in a way that increases the chances of successful conception and healthy offspring. Each one measures about 0.