diff --git a/litellm/integrations/langfuse/langfuse_sdk.py b/litellm/integrations/langfuse/langfuse_sdk.py
index 1d4979e0924..e6713ce2d86 100644
--- a/litellm/integrations/langfuse/langfuse_sdk.py
+++ b/litellm/integrations/langfuse/langfuse_sdk.py
@@ -44,8 +44,8 @@ __all__ = (
 AS_ROOT_ATTRIBUTE: Final = "langfuse.internal.as_root"
 PUBLIC_ATTRIBUTE: Final = "langfuse.trace.public"
 RELEASE_ATTRIBUTE: Final = "langfuse.release"
-_TRACE_ID_PATTERN: Final = re.compile(r"^[0-9a-f]{32}$")
-_OBSERVATION_ID_PATTERN: Final = re.compile(r"^[0-9a-f]{16}$")
+_TRACE_ID_PATTERN: Final = re.compile(r"^(?=.*[1-9a-f])[0-9a-f]{32}$")
+_OBSERVATION_ID_PATTERN: Final = re.compile(r"^(?=.*[1-9a-f])[0-9a-f]{16}$")
 
 
 def to_unix_nanos(value: datetime | float | None) -> int | None:
diff --git a/tests/test_litellm/integrations/langfuse/test_langfuse_sdk.py b/tests/test_litellm/integrations/langfuse/test_langfuse_sdk.py
index b980768657c..de75aacd95f 100644
--- a/tests/test_litellm/integrations/langfuse/test_langfuse_sdk.py
+++ b/tests/test_litellm/integrations/langfuse/test_langfuse_sdk.py
@@ -284,6 +284,17 @@ def test_non_string_observation_id_is_normalized(supplied):
     assert resolved == resolve_observation_id(supplied)
 
 
+def test_all_zero_ids_are_hashed_instead_of_passed_through():
+    zero_trace = "0" * 32
+    zero_span = "0" * 16
+
+    assert resolve_trace_id(zero_trace) != zero_trace
+    assert resolve_trace_id(zero_trace) == resolve_trace_id(zero_trace)
+    assert int(resolve_trace_id(zero_trace), 16) != 0
+    assert resolve_observation_id(zero_span) != zero_span
+    assert int(resolve_observation_id(zero_span), 16) != 0
+
+
 def test_hyphen_only_trace_ids_are_deterministic():
     assert resolve_trace_id("---") == resolve_trace_id("---")