If i have bow legs, does this mean my child will also have bow legs?

Not necessarily: A child inherits half his genes from each parent, so the leg shape will likely be a mix of the mom's & dad's leg shapes. Some traits are dominant and will show up in most of the children. One can get an idea of how dominant a trait is by looking at his family tree. So, do more than half the relatives in every generation all have bow legs? If so, then the next generation is likely to have them.