What physical signs may indicate narcotic use?

Needle marks on arms or hidden locations are significant physical signs that may indicate narcotic use. The presence of these marks, often referred to as "track marks," typically suggests intravenous drug use, which is common among users of opioids and other narcotics. Such marks may appear as small, dark lines or bruises where the drug has been injected, and they can also be found in less visible areas of the body where users may attempt to be discreet about their habits.

In many cases, individuals who use narcotics intravenously may hide their drug use, leading them to inject in locations that are not immediately visible. Identifying these needle marks can be crucial in recognizing potential substance abuse issues and is an important aspect of a fitness-for-duty evaluation, particularly in environments where safety and reliability are paramount.

While euphoria and drowsiness, capsule pills and white powder, and cold, moist skin with droopy eyelids are related to narcotic use, they are more subjective symptoms or indicators rather than definitive physical signs like needle marks. The presence of needle marks serves as a direct and observable sign of intravenous narcotic use, making it a crucial observation for identifying substance abuse.