diff --git a/leaks.go b/leaks.go
index 61bc92d..ccb50b4 100644
--- a/leaks.go
+++ b/leaks.go
@@ -85,6 +85,12 @@ type testHelper interface {
 // tests by doing:
 //
 //	defer VerifyNone(t)
+//
+// VerifyNone is currently incompatible with t.Parallel because it cannot
+// associate specific goroutines with specific tests. Thus, non-leaking
+// goroutines from other tests running in parallel could fail this check.
+// If you need to run tests in parallel, use [VerifyTestMain] instead,
+// which will verify that no leaking goroutines exist after ALL tests finish.
 func VerifyNone(t TestingT, options ...Option) {
 	opts := buildOpts(options...)
 	var cleanup func(int)