An incurable disease is a disease that keeps progressing and cannot be stopped, eventually leading to the exhaustion of the body and the decline of normal functions and metabolism. Certain malignant tumors are typical of incurable diseases. However, the natural course of psoriasis is not progressive but fluctuates regularly, generally worsening in the winter and receding in the summer, sometimes healing for years on its own. Most of the psoriasis is of the unusual type, which basically does not affect the normal function and metabolism of the body, and patients can still work, study and live normally. According to the new concept of health: “Health is the absence of significant disease that allows a person to seek his or her basic goals and to perform unusual social activities and work duties.” Therefore, some leading international dermatologists believe that psoriasis is a disease of healthy people. Besides, psoriasis is capable of being alleviated and controlled to a certain extent with appropriate, rather than impatient, treatment. It is now known that psoriasis has a genetic background, and many infections, psychiatric factors, and environmental factors can trigger psoriasis. Therefore, it is often possible to control psoriasis with treatments that target the triggers. Some of the links in the pathogenesis of psoriasis have now been recognized, and treatment targeting these links has also yielded promising results. In conclusion, psoriasis is not incurable from any point of view, and patients themselves need to remove this psychological barrier.