Wilson's disease is a rare genetic disorder that causes excessive copper accumulation in the body's organs like the liver, brain and eyes. It is caused by a defect in a gene responsible for copper transport and storage. Common symptoms include liver disease, neurological or psychiatric problems. Diagnosis involves blood tests to check ceruloplasmin levels and copper levels in urine. Treatment aims to reduce copper levels in the body through copper chelating drugs and zinc supplements while physical therapy can help manage symptoms like movement disorders and improve function.