It is quite common for individuals who are afflicted with a psychological issue to also be plagued by a co-occurring drug and alcohol abuse disorder. Frankly, it is more common than one would think and many individuals currently in drug and alcohol rehabilitation facilities in San Marcos, Texas may have mental health disorders which have just simply been undiagnosed. Treatment professionals at successful alcohol and drug rehabilitation facilities in San Marcos, Texas know how to spot persons with co-occurring psychological and substance abuse disorders so that both issues can be handled simultaneously while the individual is in treatment. Due to the fact both must be resolved, the person should not leave rehabilitation until they are mentally stable, not just sober.