What Causes Low Globulin Levels?

Globulins are serum proteins present in the human body and are common proteins found in all animals and plants. They play an important role in immune function. However, some patients may exhibit low globulin levels upon protein testing. So, what causes low globulin levels?

What Causes Low Globulin Levels?

Malnutrition can lead to a relative decrease in globulin levels within the body. This reduction is usually mild; most patients experience only a modest decline rather than markedly low levels. Other causes of low globulin include impaired liver function—such as in severe or viral hepatitis—which reduces globulin synthesis. In patients with autoimmune diseases, immunosuppressive therapy itself may contribute to decreased globulin levels. Additionally, transient reductions may occur during common colds or febrile illnesses due to temporary declines in immune function. Since low globulin levels are often disease-related, identifying the underlying cause is essential, and dietary adjustments should be emphasized. Clinically, herbal formulations such as Sophora japonica–Lycium–Scutellaria (Huai Qi Huang) may be used; when necessary, intramuscular or intravenous globulin preparations may be administered to enhance immunity.

Hepatoprotective agents such as amotolane and compound glycyrrhizin may be employed. In cases of significantly low albumin, exogenous albumin supplementation (intravenous or oral hydrolyzed protein) may also be indicated. In patients with nephrotic syndrome or other kidney diseases, albumin loss through urine leads to markedly reduced serum albumin levels.

Therefore, nephrotoxic medications should be avoided whenever possible. When clinically indicated, intravenous albumin replacement may be required. In cases of significant renal impairment, treatments such as hemodialysis may be considered. Prompt pharmacological intervention is recommended upon symptom onset. We hope this article has been helpful to you!