What are the possible complications of delusional disorder?

What are the possible complications of delusional disorder?

If left untreated, delusional disorder might lead to:

• Depression, often as a consequence of difficulties associated with the delusions.
• Social isolation.
• Legal issues — for example, stalking or harassing the person involved with the delusion could lead to arrest.
• Self-harm or harm to others. This is more common in the jealous and persecutory types.