Immunoglobulin, IGA

What is IgA or Immunoglobulin A?

Immunoglobulin is the protein made by the plasma cells in the body to defend the immune system from antigens. There are five categories of this protein,  IgA, IgR, IgM, IgE, IgD. It can stay in and outside the cells and even can freely circulate in the blood. While it is circulating with the blood, it can also be said to be an antibody.

There are three sub-categories under the antibodies:


The circulatory antibodies stay in the blood and find the infection to fight against it.


These are produced in the saliva and the mucus and support the bodies from the infection coming out of the mucus surface.


This genre of antibodies stays in tissues and other organs of the body to defend the body against the infection.

IgA or Immunoglobulin A takes part in making circulatory antibodies up to 15%. IgA keeps away the outer matter even before it comes to the mucous cells to cause any kind of harm.

Importance of IgA Test:

This test helps in knowing the level of IgA in the blood. It helps in diagnosing different immune deficiencies.

Indications of Clinical Treatment for IgA:

  • Loss of hunger
  • Lack of energy
  • Immune disorders
  • Vomiting
  • Weaker immune system

Additional information:

One must mention the list of the medicines, consuming currently so that the health service provider can analyze the condition in a better way.