Alcohol abuse is a maladaptive pattern of alcohol use leading to clinically significant impairment or distress.

Post-traumatic stress disorder, commonly referred to by its acronym, PTSD, is a severe anxiety disorder that can develop after exposure to any event that causes psychological trauma.

This case definition was developed by the Armed Forces Health Surveillance Center (AFHSC) for the purpose of epidemiological surveillance of a condition important to military-associated populations. In the summer of 1997, Army training centers reported eight hospitalizations of soldiers for hyponatremia secondary to excessive water consumption during ...

This case definition was developed by the Armed Forced Health Surveillance Center (AFHSC) for the purpose of epidemiological surveillance of conditions important to military-associated populations. In order to identify cases, the definition takes advantage of outpatient and inpatient medical encounters and cases reported through the Tri-Service ...

This case definition was developed by the Armed Forces Health Surveillance Branch Medical Surveillance Monthly Report staff for the purpose of descriptive epidemiological reports on mental disorders and mental health problems among active duty service members. The reports provide a comprehensive look at the status of mental health in the services and ...

Rhabdomyolysis is the breakdown of striated muscle cells with release into the bloodstream of their potentially toxic contents In U.S. military members, rhabdomyolysis is a significant threat during physical exertion, particularly to those under heat stress.

Schizophrenia is a severe, frequently unremitting mental illness that involves symptoms of hallucinations, delusions, paranoia, disorganized speech, and other disorganized behavior.

Psychoses are a component of certain serious mental disorders and are usually marked by an individual having false beliefs about what is taking place in reality.

Factitious disorders (e.g., Munchausen syndrome, hospital addiction syndrome, Ganser’s syndrome) are classified as mental health disorders. Individuals with these disorders intentionally produce or feign physical signs and symptoms. Their behavior is motivated by their desire to assume “sick roles” (e.g., hospitalization, medical evaluation, and ...

Suicidal ideation, also referred to as suicidal thoughts, involves thinking about, considering, or planning suicide. Suicide-related thoughts and behaviors range from transient thoughts of suicide to suicide attempts and death by suicide. Suicidal ideation is commonly associated with depression and other mood disorders and occurs more frequently than ...

Suicide is “self-inflicted death with evidence (either explicit or implicit) of intent to die."

Acute Stress Disorder

Warfighters are always ready to fight and win. Battling nicotine and tobacco use isn’t easy but you can succeed when you anticipate, plan, and work with your healthcare provider. When trying to quit tobacco, treatments that include counseling and medications increase your chances of success. Here is a four-step plan you can follow starting today to ...

DHA UBO Webinar - MAC Process - July 2026

The Health Surveillance Update is a weekly report of health events and disease outbreaks monitored by the Armed Forces Health Surveillance Division's Integrated Biosurveillance Branch.