Junctional Hemorrhage
Severe bleeding from the groin, armpit, or base of the neck, where a standard limb tourniquet cannot be applied.
In the Field
Junctional hemorrhage is the bleeding problem that taught the trauma community that limb tourniquets, as good as they are, do not solve everything. A femoral artery torn at the groin keeps bleeding even with a tourniquet on the thigh, because the bleed is above where the tourniquet sits. The same is true for axillary wounds at the armpit and the major vessels at the base of the neck. These wounds are why hemostatic dressings exist, why junctional tourniquets exist, and why your trauma kit needs more than just a CAT.
Common Mistake
Attempting to control junctional hemorrhage with a standard limb tourniquet positioned distal to the wound, when the tourniquet cannot reach proximal to the bleed.
Technical Detail
Junctional hemorrhage is severe bleeding from anatomic regions where the limb meets the torso, or where major vessels enter or exit the torso, in locations that cannot be controlled by a standard windlass-style limb tourniquet. The three primary junctional regions are:
Inguinal (groin). Wounds involving the femoral artery at or above the inguinal crease. The bleeding source is proximal to where a thigh tourniquet would sit. Common in pelvic gunshot wounds, blast injuries, and high-energy trauma involving the lower extremities.
Axillary (armpit). Wounds involving the axillary artery and vein. The bleeding source is proximal to where an upper arm tourniquet would sit.
Cervical (neck). Wounds involving the carotid arteries, jugular veins, or the great vessels at the base of the neck. No tourniquet can be safely applied to the neck.
Why it matters. The three junctional regions concentrate vascular structures that can produce rapid exsanguination. A torn femoral artery at the inguinal crease can cause death within minutes. Standard limb tourniquets, designed for application to the proximal arm or thigh, cannot reach proximal to a junctional bleed and therefore cannot stop arterial flow at the bleeding source.
Field interventions for junctional hemorrhage. Several intervention categories address junctional bleeding:
Hemostatic wound packing. The wound is packed with a hemostatic dressing (Combat Gauze, Celox, or ChitoGauze) directly down to the source of bleeding, then held with sustained direct pressure for at least three minutes. This is the foundational intervention for inguinal and axillary hemorrhage. See the Hemostatic Agent, Kaolin, and Chitosan entries.
Junctional tourniquet devices. Specialized tourniquets designed to apply pressure to junctional regions where a limb tourniquet cannot reach. The CRoC, JETT, and SAM Junctional Tourniquet are CoTCCC-recommended devices for inguinal application. Some devices have additional capabilities for axillary application. See the Junctional Tourniquet entry.
Direct pressure. For neck wounds, direct manual pressure on the bleeding vessel is the primary field intervention. The provider's hand or a pressure dressing held against the wound can occlude the bleeding without compromising the airway or the contralateral carotid.
Wound packing for neck wounds. Hemostatic gauze packed into the wound, with attention to avoiding airway compression, is appropriate for some neck wounds.
Provider scope. Junctional hemorrhage management with hemostatic wound packing is a basic responder skill taught in Stop the Bleed and TCCC/TECC entry-level courses. Junctional tourniquet application is generally taught at provider levels (Combat Lifesaver and above for military, advanced TECC for civilian). Aggressive neck hemorrhage management benefits from more advanced training.
Procurement implications. Junctional hemorrhage capability requires specific equipment beyond a basic IFAK:
Hemostatic gauze (typically multiple packages, since junctional packing can use significant volume).
Pressure dressings sized for groin and axilla application.
Junctional tourniquet device, where carrier role and budget support it.
Training time and ongoing skills maintenance for the providers expected to use the equipment.
Recognition of junctional hemorrhage as a distinct category from limb hemorrhage drove substantial change in tactical medical doctrine and equipment design over the past two decades. Modern advanced aid bags reflect this understanding directly.
Inguinal (groin). Wounds involving the femoral artery at or above the inguinal crease. The bleeding source is proximal to where a thigh tourniquet would sit. Common in pelvic gunshot wounds, blast injuries, and high-energy trauma involving the lower extremities.
Axillary (armpit). Wounds involving the axillary artery and vein. The bleeding source is proximal to where an upper arm tourniquet would sit.
Cervical (neck). Wounds involving the carotid arteries, jugular veins, or the great vessels at the base of the neck. No tourniquet can be safely applied to the neck.
Why it matters. The three junctional regions concentrate vascular structures that can produce rapid exsanguination. A torn femoral artery at the inguinal crease can cause death within minutes. Standard limb tourniquets, designed for application to the proximal arm or thigh, cannot reach proximal to a junctional bleed and therefore cannot stop arterial flow at the bleeding source.
Field interventions for junctional hemorrhage. Several intervention categories address junctional bleeding:
Hemostatic wound packing. The wound is packed with a hemostatic dressing (Combat Gauze, Celox, or ChitoGauze) directly down to the source of bleeding, then held with sustained direct pressure for at least three minutes. This is the foundational intervention for inguinal and axillary hemorrhage. See the Hemostatic Agent, Kaolin, and Chitosan entries.
Junctional tourniquet devices. Specialized tourniquets designed to apply pressure to junctional regions where a limb tourniquet cannot reach. The CRoC, JETT, and SAM Junctional Tourniquet are CoTCCC-recommended devices for inguinal application. Some devices have additional capabilities for axillary application. See the Junctional Tourniquet entry.
Direct pressure. For neck wounds, direct manual pressure on the bleeding vessel is the primary field intervention. The provider's hand or a pressure dressing held against the wound can occlude the bleeding without compromising the airway or the contralateral carotid.
Wound packing for neck wounds. Hemostatic gauze packed into the wound, with attention to avoiding airway compression, is appropriate for some neck wounds.
Provider scope. Junctional hemorrhage management with hemostatic wound packing is a basic responder skill taught in Stop the Bleed and TCCC/TECC entry-level courses. Junctional tourniquet application is generally taught at provider levels (Combat Lifesaver and above for military, advanced TECC for civilian). Aggressive neck hemorrhage management benefits from more advanced training.
Procurement implications. Junctional hemorrhage capability requires specific equipment beyond a basic IFAK:
Hemostatic gauze (typically multiple packages, since junctional packing can use significant volume).
Pressure dressings sized for groin and axilla application.
Junctional tourniquet device, where carrier role and budget support it.
Training time and ongoing skills maintenance for the providers expected to use the equipment.
Recognition of junctional hemorrhage as a distinct category from limb hemorrhage drove substantial change in tactical medical doctrine and equipment design over the past two decades. Modern advanced aid bags reflect this understanding directly.