It is not uncommon for people who struggle with a psychological issue to also be plagued by a co-occurring drug and alcohol abuse issue. In truth, it is more common than one would assume and a lot of men and women presently in drug and alcohol treatment centers in Shenandoah, PA. may have mental health issues which have just simply been undiagnosed. Rehab professionals at successful drug and alcohol treatment centers in Shenandoah, PA. know how to identify persons with co-occurring mental and substance abuse disorders so that these two issues can be simultaneously addressed while the individual is in treatment. Due to the fact both need to be addressed, the client must remain in treatment until they are mentally stable, not just abstinent.