Could you tell me what happens when adult adhd is left untreated?

Depends on severity: Russell barkley, phd presents extensive research on impact of adhd untreated on achievement, work performance, social interactions, sustaining relationships, operating motor vehiclesetc., and all aspects of life affected by attention, concentration, short-term memory, impulse control and frustration tolerance. A professional evaluation is recommended for individual assessment & treatment plan.

Continue symptomati: If an adult had symptoms of ADHD as a child, if symptoms continue, problems with attention, focus, troubles persevering at tasks will continue.

Prob with life: Quality of life suffers. Ability to be reliable and effective worker is impaired. People can be disorganized and unpredictable. Social relationships can be difficult. If the environment is well regimented and external life predictable and stress low, folks with adhd can function like other people. Throw in some stress though and they have more difficulty coping. Hope that helps.