Research has shown that people with ADHD have higher rates of suicidal ideation and of planning and attempting suicide. For instance, a 2021 study of medical students found that those with the predominantly inattentive type had five timesTrusted Source the rate of suicidal behaviors as those without ADHD.
However, this does not mean that all people with ADHD will have suicidal thoughts. Instead, it indicates that having ADHD makes an individual more likely to have these thoughts. The reason why is not fully understood, but experts think that it is a combination of co-occurring conditions and ADHD itself.