What is organic mental disorder? Mental disorders are manifestations of dysfunction in the human brain and are divided into functional and organic. Similar to a computer, when a computer does not function properly, there may be a problem with the program or a problem with the hardware; a functional mental disorder is like a problem with the program of a computer, while an organic mental disorder is similar to a computer with broken hardware. When the nerve cells or nerve fibers in the brain are damaged by various causes (e.g. stroke, encephalitis, parasites, demyelination, degenerative lesions, etc.), there may be speech and behavior disorders, emotional abnormalities, insomnia, mental decline and other manifestations, and this kind of mental disorder is called organic mental disorder; if the nerve cells or nerve fibers are not damaged, but manifest mental abnormalities, it is called functional mental disorder. How do doctors diagnose and treat organic mental disorders? The cause of functional mental disorder is unknown, and the treatment is mainly symptomatic; while the treatment process of organic mental disorder is much more complicated, finding the cause is the prerequisite for successful treatment, and only by treating the cause can we obtain good results. Although the manifestations of functional and organic psychiatric disorders are similar, both of them may manifest as confusion and emotional abnormalities; however, organic psychiatric disorders are more complex, dangerous and often life-threatening. Not only does confusion make it more difficult to determine clinical symptoms, but it also makes it difficult to implement treatment plans; patients with organic psychiatric disorders are difficult to treat, and health care providers must not only stabilize patients’ confusing psychiatric symptoms, but also deal with their serious physical problems. Doctors need to comprehensively analyze and determine the location and nature of brain lesions and systemic diseases from multiple disciplines, involving theories from neuroscience, internal medicine, and psychiatry, as well as tools and techniques from imaging, electrophysiology, testing, and neuropsychology. Patients with organic mental disorders often have severe liver, kidney, and metabolic abnormalities, and the tolerated dose of medication can vary more than tenfold from one individual to another or from one individual to another at different times, and the dose for one individual may be the dose that causes a coma in others. Careful care and scientific treatment.