Whenever global tensions rise, questions about military service and the possibility of a draft often come up in public discussions. Although the United States has not used a military draft since 1973, the Selective Service system still exists, which means certain citizens are required to register in case a national emergency ever requires additional personnel. Because of this, many people are curious about how eligibility for service is determined and what factors might prevent someone from being drafted.
If a draft were ever reinstated, individuals would go through a detailed evaluation process to determine whether they meet the physical and mental standards required for military service. One important part of this process involves medical screening. The U.S. military sets specific health requirements because military duties can involve intense physical activity, high stress, and demanding environments. People who do not meet those medical standards may be considered ineligible for service.
According to publicly available information about military health requirements, several categories of medical conditions may affect eligibility. These can include certain mental health conditions, serious neurological or cardiovascular issues, and other physical conditions that could limit a person’s ability to perform military tasks safely. For example, diagnosed seizure disorders, certain heart conditions, or severe mental health disorders may require additional medical review before someone could be considered fit for service.
However, experts note that eligibility decisions are rarely based on a single factor. Military medical evaluations examine each case individually, and in some situations waivers may be granted depending on the condition and overall health of the applicant. While discussions about drafts often appear during times of global uncertainty, defense officials emphasize that the U.S. currently relies on an all-volunteer military force, and any major changes to that system would require formal action by the government.