ADD is often accompanied by other coexisting conditions. Unfortunately, often with ADD, these other conditions have similar symptoms and, therefore, are easily misdiagnosed. This can creates a many types of problems, as these disorders, when separate, must be treated totally different. A misdiagnosis will lead to ineffective treatment. As coexisting conditions, these are especially of concern, because they increase the severity of many of the symptoms of ADD, as well as the negative impact on those that suffer with them…..especially when children are involved.