What diseases does the immunology department treat?

When talking about immunology, many people can only think of the symptoms of redness, swelling and blueness of fingers. But this is a symptom that only occurs in the elderly, and it is only one of the diseases detected by the immunology department, but many people are very panicked by this. In fact, many diseases in the body that we are not paying attention to should be treated by immunology department. The following article introduces some diseases that can be treated by immunology department. Friends who don’t understand should definitely take a look.

1. Immune system diseases

Symptoms of immune system diseases mainly include susceptibility to colds and other infectious diseases, fatigue or allergies. Depending on the cause and characteristics of the disease, the most common ones are: AIDS, allergic diseases, rheumatoid arthritis, allergic asthma, chronic fatigue, type 2 diabetes, hay fever, lupus erythematosus and multiple sclerosis. The most serious ones are AIDS and lupus erythematosus, while the milder ones are allergic diseases. 1 Allergic reaction is also an immune system disease characterized by rapid onset, strong reaction, and rapid disappearance. It generally does not destroy tissue cells or cause tissue damage, and has obvious genetic tendencies and individual differences. If it occurs on the skin, redness, swelling, urticaria, etc. will appear; if it occurs in the respiratory tract, vomiting, abdominal pain, diarrhea, etc. will appear. Some patients with severe conditions may die from bronchospasm, suffocation or anaphylactic shock.

2. Autoimmune diseases

It refers to a disease caused by the body's immune response to its own antigens, which leads to damage to its own tissues. Including systemic lupus erythematosus, rheumatic heart disease, rheumatoid arthritis, etc.

3. What are the problems caused by a damaged immune system?

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.