Kehr's sign indicates injury to which organ?

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Multiple Choice

Kehr's sign indicates injury to which organ?

Explanation:
Kehr's sign is left shoulder pain from diaphragmatic irritation due to intra-abdominal bleeding. When the spleen is injured and bleeds into the peritoneal cavity, blood irritates the left hemidiaphragm. This irritation stimulates the phrenic nerve (C3–5), and the brain interprets that sensory input as pain in the left shoulder. That pattern—left shoulder pain with possible abdominal trauma—is classic for splenic injury. While other organs can cause diaphragmatic irritation and referred pain, Kehr's sign most strongly points to the spleen as the source of bleeding.

Kehr's sign is left shoulder pain from diaphragmatic irritation due to intra-abdominal bleeding. When the spleen is injured and bleeds into the peritoneal cavity, blood irritates the left hemidiaphragm. This irritation stimulates the phrenic nerve (C3–5), and the brain interprets that sensory input as pain in the left shoulder. That pattern—left shoulder pain with possible abdominal trauma—is classic for splenic injury. While other organs can cause diaphragmatic irritation and referred pain, Kehr's sign most strongly points to the spleen as the source of bleeding.

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