Damage to brain functioning could be due not only to organic (physical) injury (a severe blow to the head, stroke, chemical and toxic exposures, organic brain disease, substance use, etc.) and also to non-organic means such as severe deprivation, abuse, neglect, and severe psychological trauma. Symptoms
Many of the symptoms of Organic Mental Disorder depend on the cause of the disorder, but are similar and include physical or behavioral elements. Dementia and delirium are the cause of the confusion, orientation, cognition or alertness impairment. Therefore, these symptoms require more attention because hallucinations, delusions, amnesia, and personality changes are the result. These effects of the dementia and delirium are not joined with the changes of sensory or perception abilities. Memory impairment, judgment, logical function and agitation are also some extremely common symptoms. The more common symptoms of OBS are confusion; impairment of memory, judgment, and intellectual function;  and agitation. Often these symptoms are attributed to psychiatric illness, which causes a difficulty in diagnosis. Associated conditions
Disorders that are related to injury or damage to the brain and contribute to OBS include, but are not limited to:

Alcoholism
Alzheimers disease
Attention deficit/hyperactivity disorder
Autism
Concussion
Encephalitis
Epilepsy
Fetal alcohol syndrome
Hypoxia
Parkinsons disease
Intoxication/overdose caused by substance use disorders including alcohol use disorder
Non-medical use of sedative hypnotics
Intracranial hemorrhage/trauma
Korsakoff syndrome
Mastocytosis
Meningitis
Psychoorganic syndrome
Stroke/transient ischemic attack (TIA)
Withdrawal from drugs, especially sedative hypnotics, e.g. alcohol or benzodiazepinesOther conditions that may be related to organic brain syndrome include: clinical depression, neuroses, and psychoses, which may occur simultaneously with the OBS.
Treatment
While the treatment depends on which particular disorder is involved in Organic Mental Disorder, a few that are possible. Treatments can include, but are not limited to, rehabilitation therapy such as physical or occupational, pharmacological modification of the neurotransmitter function, or medication. The affected parts of the brain can recover some function with the help of different types of therapy. Online therapy can be just as intense and helpful as rehabilitation therapy, in person, and can help those affected regain function in daily life. Prognosis
Some disorders are short-term and treatable, and their prognosis is not as lengthy. Rest and medication are the most common courses of action for these treatable cases to help the patient return to proper health. Many of the cases are long-term, and there is not as much of a set and defined prognosis. The course of action can include extensive counseling and therapy. There are many reasons that the long-term cases are harder to treat and these include these cases normally get worse over time, and medication or therapy could not work. In this case, many of the prognosis tracks are to help the patient and their family become more comfortable and understand what will happen.