A large number of people aspire to careers in security — whether as a personal protection specialist, TSA officer, corporate security officer, or private investigator. The nature of these jobs necessitates robust physical fitness, cognitive sharpness, and an consistent trustworthiness. A significant portion of applicants are turned away because certain common health conditions may compromise operational effectiveness, create liability concerns, or prevent meeting stringent medical standards.

A widely cited barrier is uncontrolled high blood pressure. Security staff routinely endure non-stop rotations, handle crisis situations, and may be required to act swiftly under pressure. Untreated cardiovascular strain can increase the likelihood of sudden medical collapse during these intense moments. Employers almost universally require that applicants submit consistent medical records over time, verified by a licensed healthcare provider.

Conditions such as a prior heart attack, congestive heart failure, or irregular heart rhythms are major red flags. Though the individual may be stable, the unpredictable nature of cardiac events makes these conditions a critical hiring barrier. Employers expect continuous physical readiness, and safety protocols prohibit having an employee collapse on the job.

Severe respiratory conditions such as persistent bronchial constriction or chronic obstructive pulmonary disease can also lead to rejection. Duties may include donning full gear including respirators, navigating multi-level environments, chasing fleeing suspects, or operating in hazardous air conditions. Difficulty breathing under strain can endanger the officer and others.

Mental health conditions are another key area of review. Those diagnosed with panic disorders, major depressive disorder, or bipolar disorder function effectively in demanding roles, unmanaged psychological symptoms may be grounds for rejection if they affect critical thinking, composure under pressure, or the ability to respond appropriately in high-stress situations. Hiring panels typically require consistent improvement over time, confirmed follow-up care, and no history of suicidal ideation or attempts.

Convulsive neurological disorders are almost always barred, especially for roles that involve managing transportation, climbing towers, or using tactical equipment. An unanticipated episode could cause serious injury or death. Some agencies may consider applicants who have been completely free of episodes for 3–5 years and are under consistent medical supervision, but this exception is uncommon and varies by position sensitivity.

Sensory limitations that remain below required levels are common reasons for 診断書 disqualification. Officers need to reliably detect unusual activity, recognize facial features or ID details, respond to auditory cues, or convey instructions accurately. Uncorrected visual or auditory deficits can jeopardize mission success and safety.

Diabetes, particularly when poorly controlled can be a disqualifying risk factor due to the risk of hypoglycemic episodes. Rapid glucose fluctuations may cause cognitive impairment, loss of coordination, or collapse. Those with this condition typically must prove, and have no history of severe reactions on duty.

Any record of substance misuse or current dependence on alcohol or drugs is routinely grounds for rejection. These positions necessitate complete integrity and clear cognitive function. Background checks and rigorous vetting processes and compliance-based testing for this reason. Previous misuse that included legal violations or workplace incidents may permanently block hiring.

It’s important to recognize that some health concerns are negotiable. Most organizations consider personal medical context, ongoing medical management, and official clinical records. Individuals demonstrating effective health management may be considered on a case-by-case basis, especially if they can demonstrate they can perform all duties safely. Essential elements for approval are honesty, proper medical care, and complete transparency throughout the application process.