Carrier testing and reproduction: your options If you, or a relative of yours, has a muscle-wasting condition you may want to know whether you are a carrier and if you will pass the condition on. Find out more Prenatal diagnosis and testing Prenatal tests can be used to determine whether the unborn child of parents who are carriers will have a muscle-wasting conditions. Find out more Pregnancy and fertility In families with a history of muscle-wasting conditions, people may be concerned and want information and support when thinking about starting a family. Find out more