If you haven't been through a miscarriage, you can't possible say, "I know what you are going through;" because you don't know what they are going through. You don't know what anybody is going through. You don't know what's going on in their mind. You don't understand how if feels emotionally or psychologically. But you may be there and you may be able to provide some comfort to those who just had a miscarriage. If you read about miscarriage, and that's probably a good thing to do if you have a friend or relative that's been through it -- you'll find that one in six pregnancies end in a miscarriage and it's supposedly Mother Nature's way of dealing with defective fetuses. It's a good thing, in a way. People say sometimes, with the very best of intentions, "It was all for the best." Don't say that. While it may be technically true, it is not true for that person who is going through it at that time. Find some other way to do it. If it's a guy, men and women grieve in very different ways. If it's a woman, she may need much more emotional and may be drawn to more female friends that may better understand what she has been through. If it's a guy, you may invite him out for a beer. That may be a way of dealing with it. Take him out to hit softballs at the batting cages. Men have a tendency to grieve in a more physical sort of way.