Despite concerns among military personnel that seeking mental health treatment might negatively affect their security clearances, data from the Defense Department suggests that such fears are largely unfounded. The Defense Counterintelligence and Security Agency (DCSA) reveals that only a small percentage of security clearances are affected by psychological conditions, with just 1.8% of cases involving these issues since 2012. This data indicates that seeking mental health assistance does not significantly impact troops’ security clearances.
  

Key Points: 

1. Low Impact on Clearances: Data from the DCSA shows that psychological conditions have resulted in only a small fraction of security clearance denials or revocations, accounting for just 1.8% of cases since 2012.
2. Other Disqualifiers More Common: Clearances are more commonly affected by issues related to drug or alcohol use and financial considerations, which are cited at a higher rate than psychological conditions.
3. Treatment and Adherence: The DCSA focuses on whether service members diagnosed with mental health conditions follow their treatment plans, emphasizing the importance of adherence to the plan during the clearance process.

Source: https://www.armytimes.com/news/your-navy/2023/11/22/mental-health-doesnt-cost-troops-security-clearances-data-shows/