United States Department of Veterans Affairs
Public Health

Gulf War Veterans’ Medically Unexplained Illnesses

 

A prominent condition affecting Gulf War Veterans is a cluster of medically unexplained chronic symptoms that can include fatigue, headaches, joint pain, indigestion, insomnia, dizziness, respiratory disorders, and memory problems.

VA prefers not to use the term “Gulf War Syndrome” when referring to medically unexplained symptoms reported by Gulf War Veterans. Why? Because symptoms vary widely and therefore, do not meet the definition of a syndrome. A syndrome is a group of symptoms that usually occur together and characterize a certain disease or abnormal condition. That is why VA uses the terms “medically unexplained chronic multisymptom illnesses” and "undiagnosed illnesses" instead of “Gulf War Syndrome.”

Doctor having a discussion with a veteran patient

Military service connection

Gulf War Veterans who meet the criteria below do not need to prove a connection between their military service and illnesses in order to receive VA disability compensation.

VA presumes certain chronic, unexplained symptoms existing for 6 months or more are related to Gulf War service without regard to cause. These "presumptive" illnesses must have appeared during active duty in the Southwest Asia theater of military operations or by December 31, 2016, and be at least 10 percent disabling. These illnesses include:

  • Chronic Fatigue Syndrome, a condition of long-term and severe fatigue that is not relieved by rest and is not directly caused by other conditions.
  • Fibromyalgia, a condition characterized by widespread muscle pain. Other symptoms may include insomnia, morning stiffness, headache, and memory problems.
  • Functional gastrointestinal disorders, a group of conditions marked by chronic or recurrent symptoms related to any part of the gastrointestinal tract. Functional condition refers to an abnormal function of an organ, without a structural alteration in the tissues. Examples include irritable bowel syndrome (IBS), functional dyspepsia, and functional abdominal pain syndrome.
  • Undiagnosed illnesses with symptoms that may include but are not limited to: abnormal weight loss, fatigue, cardiovascular disease, muscle and joint pain, headache, menstrual disorders, neurological and psychological problems, skin conditions, respiratory disorders, and sleep disturbances.

VA’s final rule specifying that functional gastrointestinal disorders are covered as presumptive illnesses took effect on August 15, 2011.

VA benefits

Gulf War Veterans may be eligible for a variety of VA benefits, including a Gulf War Registry health exam, health care, and disability compensation for diseases related to military service. Their dependents and survivors also may be eligible for benefits.

Learn more about benefits related to Gulf War service.

Research on Gulf War Veterans’ illnesses

VA and other researchers continue to conduct research to investigate whether service in the Gulf War is linked to illnesses Gulf War Veterans have experienced.

VA contracts with the Institute of Medicine to scientifically review the evidence for possible connections between Gulf War Veterans’ illnesses and exposure to environmental agents or preventive medicine during military service, and the best treatments for these illnesses. The Institute of Medicine is conducting a thorough review of scientific and medical research to determine the best treatments for chronic multisymptom illness among Gulf War Veterans.  The final report is expected in early 2013. Find out more about Gulf War Institute of Medicine reports.


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