It is not uncommon for individuals who have problems with a mental health disorder to also have a co-occurring drug and alcohol abuse issue. Frankly, it is more common than one would imagine and a lot of people currently in drug and alcohol treatment centers in Sonora, California may have mental health disorders which are often undiagnosed. Rehab professionals at successful drug rehabilitation facilities in Sonora know how to identify persons with co-occurring mental health and substance abuse issues in hopes that both concerns can be handled simultaneously while the person is in rehabilitation. Because both must be resolved, the individual should not leave rehabilitation until they are mentally stable, not just abstinent.