What does immune system disease mean?

Our immune system is a complex but well-ordered system that protects us from external viruses and keeps our bodies at a healthy level. However, many people do not know what immune system diseases mean, nor do they know what categories of immune system diseases there are. When it comes to immune system diseases, there are many types of diseases included, and once there is a problem with the immune system, it is easy to cause the occurrence of other diseases.

Some common diseases such as arthritis, diabetes, allergies, etc. are also included in immune system diseases. Having said so much, you may still not quite understand this aspect. So let’s see what the experts say on this issue.

The immune system's job is to search for, recognize, and attack disease-causing agents or pathogens, such as bacteria or viruses. While fighting the pathogens, you will have symptoms such as fever and general discomfort.

When pathogens enter the bloodstream, a type of immune cell called a phagocyte ingests the pathogens and activates two other types of immune cells, B cells and T cells. B cells directly fight invading microorganisms by producing antibodies, while T cells come in many types. Helper T cells activate immune responses by altering other immune system cells that harbor invaders. Killer T cells directly kill invaders, while suppressor T cells regulate and terminate the process of the immune response. After the immune response, the immune system will remember the invader's chemical signals, and when it invades again next time, the immune system will produce antibodies to attack at a faster rate.

For most people and most of the time, the immune system works very effectively, but sometimes it will attack its normal environment. For example, an exaggerated immune response can cause so-called autoimmune diseases. In these cases, for reasons that are not yet understood, the immune system mistakes normal, healthy body tissue for an invader and attacks it. Autoimmune diseases include rheumatoid arthritis, multiple sclerosis, lupus, type 1 diabetes, scleroderma, and myasthenia gravis (destruction of muscle proteins). Some researchers believe that chronic fatigue syndrome and Lou Gehng disease may also be an autoimmune disease.

Another type of immune disease is caused by the immune system's overreaction to some harmless substances, such as allergies. Hay fever is caused by the immune system mistaking pollen for a dangerous invader and triggering a strong and sometimes fatal response.

In contrast to the above, in some cases the immune response is too weak, manifesting as an immunodeficiency disease, of which AIDS may be the most familiar; another is hereditary immunodeficiency disease, a rare but potentially fatal disease.

When a normally healthy person exhibits the following symptoms, such as difficulty healing from infections and becoming susceptible to infections, it may be a sign that your immune system is suppressed.

What does immune system disease mean? After reading the relevant introduction made by the experts, have you gained a lot? If you find that you have a related disease, you must go to the hospital for diagnosis and treatment as soon as possible to avoid delaying the disease. Finally, I hope everyone can be safe and healthy.