diff --git a/concrete/common/debugging/printing.py b/concrete/common/debugging/printing.py
index 688a4faef..0077ce794 100644
--- a/concrete/common/debugging/printing.py
+++ b/concrete/common/debugging/printing.py
@@ -1,12 +1,12 @@
 """functions to print the different graphs we can generate in the package, eg to debug."""
 
-from typing import Any, Dict
+from typing import Any, Dict, Optional
 
 import networkx as nx
 
 from ..debugging.custom_assert import assert_true
 from ..operator_graph import OPGraph
-from ..representation.intermediate import Constant, Input, UnivariateFunction
+from ..representation.intermediate import Constant, Input, IntermediateNode, UnivariateFunction
 
 
 def output_data_type_to_string(node):
@@ -39,18 +39,26 @@ def shorten_a_constant(constant_data: str):
     return short_content
 
 
-def get_printable_graph(opgraph: OPGraph, show_data_types: bool = False) -> str:
+def get_printable_graph(
+    opgraph: OPGraph,
+    show_data_types: bool = False,
+    highlighted_nodes: Optional[Dict[IntermediateNode, str]] = None,
+) -> str:
     """Return a string representing a graph.
 
     Args:
         opgraph (OPGraph): The graph that we want to draw
-        show_data_types (bool): Whether or not showing data_types of nodes, eg
-            to see their width
+        show_data_types (bool): Whether or not showing data_types of nodes, eg to see their width
+        highlighted_nodes (Optional[Dict[IntermediateNode, str]]):
+            The dict of nodes which will be highlighted and their corresponding messages
 
     Returns:
         str: a string to print or save in a file
     """
     assert_true(isinstance(opgraph, OPGraph))
+
+    highlighted_nodes = highlighted_nodes if highlighted_nodes is not None else {}
+
     list_of_nodes_which_are_outputs = list(opgraph.output_nodes.values())
     graph = opgraph.graph
 
@@ -127,6 +135,10 @@ def get_printable_graph(opgraph: OPGraph, show_data_types: bool = False) -> str:
 
         returned_str += f"{new_line}\n"
 
+        if node in highlighted_nodes:
+            message = highlighted_nodes[node]
+            returned_str += f"{'^' * len(new_line)} {message}\n"
+
         map_table[node] = i
         i += 1
 
diff --git a/tests/common/debugging/test_printing.py b/tests/common/debugging/test_printing.py
new file mode 100644
index 000000000..d183329ca
--- /dev/null
+++ b/tests/common/debugging/test_printing.py
@@ -0,0 +1,91 @@
+"""Test file for printing"""
+
+from concrete.common.data_types.integers import Integer
+from concrete.common.debugging import get_printable_graph
+from concrete.common.values import EncryptedScalar
+from concrete.numpy.compile import compile_numpy_function_into_op_graph
+
+
+def test_get_printable_graph_with_offending_nodes():
+    """Test get_printable_graph with offending nodes"""
+
+    def function(x):
+        return x + 42
+
+    opgraph = compile_numpy_function_into_op_graph(
+        function,
+        {"x": EncryptedScalar(Integer(7, True))},
+        [(i,) for i in range(-5, 5)],
+    )
+
+    highlighted_nodes = {opgraph.input_nodes[0]: "foo"}
+
+    without_types = get_printable_graph(
+        opgraph, show_data_types=False, highlighted_nodes=highlighted_nodes
+    ).strip()
+    with_types = get_printable_graph(
+        opgraph, show_data_types=True, highlighted_nodes=highlighted_nodes
+    ).strip()
+
+    assert (
+        without_types
+        == """
+
+%0 = x
+^^^^^^ foo
+%1 = Constant(42)
+%2 = Add(%0, %1)
+return(%2)
+
+""".strip()
+    )
+
+    assert (
+        with_types
+        == """
+
+%0 = x                                             # EncryptedScalar<Integer<signed, 6 bits>>
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ foo
+%1 = Constant(42)                                  # ClearScalar<Integer<unsigned, 7 bits>>
+%2 = Add(%0, %1)                                   # EncryptedScalar<Integer<unsigned, 6 bits>>
+return(%2)
+
+""".strip()
+    )
+
+    highlighted_nodes = {opgraph.input_nodes[0]: "foo", opgraph.output_nodes[0]: "bar"}
+
+    without_types = get_printable_graph(
+        opgraph, show_data_types=False, highlighted_nodes=highlighted_nodes
+    ).strip()
+    with_types = get_printable_graph(
+        opgraph, show_data_types=True, highlighted_nodes=highlighted_nodes
+    ).strip()
+
+    assert (
+        without_types
+        == """
+
+%0 = x
+^^^^^^ foo
+%1 = Constant(42)
+%2 = Add(%0, %1)
+^^^^^^^^^^^^^^^^ bar
+return(%2)
+
+""".strip()
+    )
+
+    assert (
+        with_types
+        == """
+
+%0 = x                                             # EncryptedScalar<Integer<signed, 6 bits>>
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ foo
+%1 = Constant(42)                                  # ClearScalar<Integer<unsigned, 7 bits>>
+%2 = Add(%0, %1)                                   # EncryptedScalar<Integer<unsigned, 6 bits>>
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ bar
+return(%2)
+
+""".strip()
+    )