Psychiatrist Questions Hallucinations

What causes hallucinations?

What could cause hallucinations in a young, healthy man? I've noticed my friend reacting to 'noises' that nobody else heard. I am worried about that. Should he go to a doctor?

3 Answers

That’s hard to answer that question. Some are more aware and intuitive than others or he might really need a doctor. Depends on what is going on
PTSD, Fear, drugs
This link will provide you some insight:
https://www.webmd.com/schizophrenia/what-are-hallucinations#1
He should see a medical doctor first to rule out some physiological.medical issue first.