How to detect and prevent Goroutine Leaks?

A goroutine leak occurs when a goroutine is blocked forever and cannot be garbage collected.

Because goroutines aren't automatically terminated when their parent function exits, waiting on an unbuffered channel that never receives data, or acquiring a lock that is never released, leaves the goroutine stranded. This consumes memory until the app crashes. Prevention relies on Context cancellation, timeout select cases, and using pprof to monitor active goroutine counts.