In this talk we will understand what memory leaks are and see common cases in the world of Go, including the case of goroutine leaks. In addition, we will learn how to identify the symptoms arising from these leaks and the root cause, using tools such as Uber's goleak, pprof and measuring impact with load tests using k6. And we will see the most important thing: how to solve them, highlighting good practices to avoid them in everyday life.