Neuropathy is the abbreviation of neurological diseases, which are diseases of the brain, spinal cord, peripheral nerves and neuromuscles that make up the nervous system due to infections, vascular lesions, tumors, trauma, degeneration and other causes. For example, viral and bacterial infections can cause various types of encephalitis and meningitis; hypertension and arteriosclerosis can cause acute cerebrovascular disease commonly known as “stroke”; head trauma can cause concussion and brain contusion, etc. So, what are the clinical manifestations of neurological lesions? If headache, dizziness, paralysis, convulsion, sensory loss or loss, pain, tremor, numbness of limbs, muscle atrophy and weakness, aphasia, coma and other symptoms are present, patients should go to neurology department for examination as soon as possible in order to get timely diagnosis and treatment. Psychosis refers to abnormal mental activity (also known as mental activity), insanity and abnormal behavior, which is commonly known as “crazy”. This is a type of disease caused by the effect of various harmful factors inside and outside the body, causing brain dysfunction, resulting in abnormalities in sensation, perception, thinking, emotion, attention, memory, will and behavior. The clinical manifestations are excitement, emotional instability, babbling, hallucinations and delusions, and foolishness and dementia, and they do not admit that they are ill and avoid and refuse treatment. Due to the obvious abnormalities in mental activities of psychiatric patients, they often bring adverse effects and even harm to individuals, families and society. Therefore, it is important to carry out the prevention and treatment of mental illness. Since mental activity is produced by the brain and the brain is the material basis of mental activity, psychosis is closely related to the nervous system (disease). However, there are obvious differences between the two in terms of etiology, pathology, pathogenesis, clinical manifestations and treatment, and they are two different types of diseases, which must not be confused together.