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High blood protein

Definition

High blood protein is an increase in the concentration of protein in the bloodstream. The medical term for high blood protein is hyperproteinemia. High blood protein is not a specific disease or condition, but it might indicate you have a disease.

High blood protein rarely causes symptoms on its own. But sometimes it is uncovered while you're having blood tests done for a separate issue or symptom.

Causes

Possible causes of high blood protein include:

  • Amyloidosis (buildup of abnormal proteins in your organs)
  • Dehydration (when the body doesn't have enough water and other fluids to work as it should)
  • Hepatitis B
  • Hepatitis C
  • HIV/AIDS
  • Monoclonal gammopathy of undetermined significance (MGUS)
  • Multiple myeloma

A high-protein diet doesn't cause high blood protein.

High blood protein is not a specific disease or condition. It's usually a laboratory finding uncovered while evaluating another condition or symptom. For instance, high blood protein is found in people who are dehydrated. However, the real problem is that the blood plasma is actually more concentrated.

Certain proteins in the blood may be elevated as your body fights an infection or some other inflammation. People with certain bone marrow diseases, such as multiple myeloma, may have high blood protein levels before they show any other symptoms.

The role of proteins

Proteins are large, complicated molecules that are vital to the function of all cells and tissues. They are made in many places throughout your body and circulate in the blood.

Proteins take a variety of forms, such as albumin, antibodies and enzymes, and have many different functions, including:

  • Helping you fight disease.
  • Regulating body functions.
  • Building muscles.
  • Transporting drugs and other substances throughout the body.

When to see a doctor

If your health care provider discovers high blood protein during an evaluation, additional tests can help determine if there is an underlying problem.

A total protein test can determine whether you have high blood protein. Other more-specific tests, including serum protein electrophoresis (SPEP), can help determine the exact source, such as liver or bone marrow. These tests also can identify the specific protein type involved in your high blood protein levels. Your provider may order an SPEP if a bone marrow disease is suspected.

Last Updated: November 30th, 2022


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