It is quite common for individuals who struggle with a psychological issue to also be plagued by a co-occurring substance abuse issue. Frankly, it is more common than one would imagine and quite a few men and women currently in drug rehab programs in Rialto, California may have mental health disorders which are often undiagnosed. Treatment experts at successful drug rehabilitation programs in Rialto know how to spot persons with co-occurring psychological and substance abuse disorders so that these two issues can be simultaneously addressed while the person is in rehabilitation. Simply because both need to be addressed, the individual must remain in rehab until they are psychologically stable, not just abstinent.