There is no precise medical term for delusional disorder, which is generally considered to be a delusional disorder, mostly seen in schizophrenia. Normal people can also have fantasies, but when they occur they can independently distinguish between fantasy and reality. Patients with delusional disorder are usually unable to distinguish between fantasy and reality, and may experience fear, anxiety, obsessions, and other adverse emotions, as well as delusions of victimization, delusions of affection, exaggerated delusions, jealous delusions, somatic delusions, etc. 1. Delusions of victimization: Patients often feel that they are being or will be persecuted, calculated, or threatened. For example, they may imagine that someone is persecuting them to appeal to the court or that others are taking extreme measures to harm them. 2. Love delusion: The patient is convinced that he or she is deeply loved by a person of the opposite sex, but for some reason is too shy to confess to him or her. Even after confessing to this person and being rejected, the patient still believes that the other person does not really reject him or her. Patients may continue to harass the object of their fantasy love, or even use coercive behavior to reach the target; 3. Exaggerated delusions: Patients often feel extraordinary, believing that they are intellectually superior, talented, or good friends with the gods, etc. They often feel that they can achieve great things at any time with their thinking; 4. Jealous delusions: Patients often feel that their spouse is cheating on them, and take extreme measures, such as stalking and spying, to 5. Somatic delusions: Patients often feel that they are physically ill and go around to seek medical help, believing that the failure to detect lesions is due to imprecise instruments or the fact that they are terminally ill and the doctor cannot bear to tell the truth. As a result, they often spend a lot of money but do not improve. In addition, there are also delusional disorders such as relationship delusions, self-criminal delusions, and physical delusions, all of which are long-lasting and excessively detached from reality. These delusions are prolonged and excessively detached from reality, and can be accompanied by symptoms such as hallucinations, hallucinations, and hallucinations. If there is a situation where you cannot distinguish between imagination and reality, you should go to the psychiatry department in time and confirm the diagnosis with the help of a doctor after the EEG and other tests are completed.