diff --git a/crates/bevy_ecs/src/observer/mod.rs b/crates/bevy_ecs/src/observer/mod.rs
index 600384d478..3ef2d6b28d 100644
--- a/crates/bevy_ecs/src/observer/mod.rs
+++ b/crates/bevy_ecs/src/observer/mod.rs
@@ -12,7 +12,7 @@ use crate::{archetype::ArchetypeFlags, system::IntoObserverSystem, world::*};
 use crate::{component::ComponentId, prelude::*, world::DeferredWorld};
 use bevy_ptr::Ptr;
 use bevy_utils::{EntityHashMap, HashMap};
-use std::marker::PhantomData;
+use std::{fmt::Debug, marker::PhantomData};
 
 /// Type containing triggered [`Event`] information for a given run of an [`Observer`]. This contains the
 /// [`Event`] data itself. If it was triggered for a specific [`Entity`], it includes that as well. It also
@@ -84,6 +84,17 @@ impl<'w, E, B: Bundle> Trigger<'w, E, B> {
     }
 }
 
+impl<'w, E: Debug, B: Bundle> Debug for Trigger<'w, E, B> {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        f.debug_struct("Trigger")
+            .field("event", &self.event)
+            .field("propagate", &self.propagate)
+            .field("trigger", &self.trigger)
+            .field("_marker", &self._marker)
+            .finish()
+    }
+}
+
 /// A description of what an [`Observer`] observes.
 #[derive(Default, Clone)]
 pub struct ObserverDescriptor {
diff --git a/crates/bevy_ecs/src/world/component_constants.rs b/crates/bevy_ecs/src/world/component_constants.rs
index 92c1572b09..ead0e5ac9f 100644
--- a/crates/bevy_ecs/src/world/component_constants.rs
+++ b/crates/bevy_ecs/src/world/component_constants.rs
@@ -16,24 +16,28 @@ pub const ON_REMOVE: ComponentId = ComponentId::new(3);
 
 /// Trigger emitted when a component is added to an entity. See [`crate::component::ComponentHooks::on_add`]
 /// for more information.
-#[derive(Event)]
+#[derive(Event, Debug)]
 #[cfg_attr(feature = "bevy_reflect", derive(Reflect))]
+#[cfg_attr(feature = "bevy_reflect", reflect(Debug))]
 pub struct OnAdd;
 
 /// Trigger emitted when a component is inserted onto an entity. See [`crate::component::ComponentHooks::on_insert`]
 /// for more information.
-#[derive(Event)]
+#[derive(Event, Debug)]
 #[cfg_attr(feature = "bevy_reflect", derive(Reflect))]
+#[cfg_attr(feature = "bevy_reflect", reflect(Debug))]
 pub struct OnInsert;
 
 /// Trigger emitted when a component is replaced on an entity. See [`crate::component::ComponentHooks::on_replace`]
 /// for more information.
-#[derive(Event)]
+#[derive(Event, Debug)]
 #[cfg_attr(feature = "bevy_reflect", derive(Reflect))]
+#[cfg_attr(feature = "bevy_reflect", reflect(Debug))]
 pub struct OnReplace;
 
 /// Trigger emitted when a component is removed from an entity. See [`crate::component::ComponentHooks::on_remove`]
 /// for more information.
-#[derive(Event)]
+#[derive(Event, Debug)]
 #[cfg_attr(feature = "bevy_reflect", derive(Reflect))]
+#[cfg_attr(feature = "bevy_reflect", reflect(Debug))]
 pub struct OnRemove;