In daily life, psoriasis has become a common skin disease. The occurrence of this disease brings a certain impact on the life, work and study of patients. The disease has a long treatment period and is very recurrent, so it is very difficult to cure psoriasis. So, why will suffer from psoriasis, let’s take a look at the following, I introduced the four major causative factors of psoriasis for you. One, allergic factors Usually, people suffering from psoriasis are particularly sensitive to food and drugs and will have skin allergies, redness and swelling on the body. At this point, it is important to go to the hospital in time for treatment, and the early stages can be completely healed. However, if the cause of the allergy cannot be identified and treated in time, it may lead to psoriasis. Second, mental factors Human immune system disease is not isolated in the human body, with the endocrine-neuro-psychiatric system widely linked. Endocrine, neurological, and psychiatric disorders can all affect the immune system. Research has found that mental factors and psoriasis or a “two-way choice” relationship, emotional tension is not only a triggering factor for psoriasis, but also a factor that contributes to the recurrence of psoriasis and aggravation of skin lesions. The actual fact is that you can find a lot of people who are not able to get a good deal on this kind of things. Although the skin lesions of psoriasis are not a direct consequence of a bacterial, fungal or viral attack, microbial infections can directly lead to inappropriate activation of the human immune system – often referred to as a metamorphosis. Infections make the patient’s body less immune and less able to resist the outside world. It is easy to be affected by external viruses, which may trigger psoriasis. The endocrine factor The level of estrogen may affect the immune system, endocrine is actually the real “behind the scenes” control of our body, psoriasis and the relationship between endocrine gland function, has long been attention. It has been found that some patients have pituitary a adrenal cortical dysfunction, urinary ketosteroids decrease, and clinical application of corticosteroids to treat this disease. The above is about the four major causative factors of psoriasis, I hope it will be helpful to everyone. But it is necessary to remind patients that psoriasis, if not treated in a timely manner, later brings great harm to patients, so once the disease occurs, once to timely medical treatment, in life, we need to strengthen exercise, enhance their immunity, avoid infection, and maintain a good state of mind.