It is quite common for people who struggle with a mental health disorder to also be plagued by a co-occurring substance abuse disorder. Frankly, it is more widespread than one would think and quite a few people currently in drug rehabilitation facilities in China may have psychological issues which have just simply been undiagnosed. Rehabilitation experts at successful drug and alcohol rehabilitation facilities in China know how to spot individuals with co-occurring mental and substance abuse disorders so that both concerns can be simultaneously addressed while the individual is in treatment. Due to the fact both must be resolved, the person must remain in rehab until they are mentally stable, not just sober.