Questions about medical conditions and draft eligibility in the U.S. often come up in public discussions. Although the United States hasn’t used a military draft since 1973, the Selective Service System still requires certain citizens to register in case a national emergency ever demands additional personnel. As a result, many people are curious about how eligibility is determined and what health factors could prevent someone from being drafted.

If a draft were reinstated, individuals would undergo a thorough evaluation to determine if they meet the physical and mental standards necessary for military service. Medical screening is a key part of this process because military duties can involve intense physical activity, high stress, and challenging environments. People who do not meet these medical standards may be deemed ineligible for service.

Public information on military health requirements highlights several categories of medical conditions that may impact eligibility. These include some mental health conditions, serious neurological or cardiovascular disorders, and other physical issues that could limit a person’s ability to perform military duties safely. For instance, seizure disorders, certain heart conditions, or severe mental health disorders often require additional medical review before a candidate can be considered fit for service.

Experts emphasize that eligibility decisions are rarely based on a single condition. Military medical evaluations consider each applicant individually, and in some cases, waivers may be granted depending on the condition and overall health. While draft-related discussions tend to emerge during periods of global uncertainty, defense officials stress that the U.S. currently relies on an all-volunteer military force, and any changes to that system would require formal government action.