The individual described in your scenario is most likely to be diagnosed with hoarding disorder. This condition involves the persistent difficulty of discarding or parting with possessions, regardless of their actual value, leading to the accumulation of items and significant clutter that can pose health and safety risks, such as a fire hazard.
The other options listed are not applicable in this context:
- Trichotillomania is characterized by recurrent hair-pulling.
- Excoriation (skin picking) involves compulsive picking of the skin.
- Body dysmorphic disorder focuses on an obsessive preoccupation with perceived defects in appearance.
Thus, the correct answer is hoarding disorder.