Ying-spring (fire) point.

bubble_chart Etymology

"Lao" (勞), labor or exertion; "gong" (宮), palace or center. This point is located in the center of palm, an area that is frequently engaged in grasping and laboring activities. Hence the name.

bubble_chart Location

Laogong (PC8) acupoint
(quoted from "Meridians and Acupoints")

In the center of palm, between 2nd and 3rd metacarpal bones, slightly deviate to 3rd metacarpal bone, at the midpoint of palmar crease. When making a fist, it is located where the tip of middle finger points.

• Lingshu‧Benshu: "In the palm, between the inner sections of middle finger";
• Zhenjiu Jiayi Jing: "In the center of palm, where the palmar artery is located;
• Tongren Shuxue Zhenjiu Tujing: "Located by flexing ring finger",
• Zhenjiu Zisheng Jing: "It is correct to locate it by flexing middle finger; the method of flexing ring finger is incorrect";
• Shisijing Fahui: "From a modern perspective, it is more accurate to locate it between flexed middle and ring fingers." Currently, the method from Zhenjiu Zisheng Jing is most commonly followed.

bubble_chart Anatomy

• Muscles: palmar aponeurosis, second lumbrical muscle, and the tendons of flexor digitorum superficialis and profundus. deeply, the origin of transverse head of adductor pollicis, first palmar interosseous muscle, and second dorsal interosseous muscle.
• Nerve: second proper palmar digital nerve of median nerve.
• Vessel: common palmar digital artery.

bubble_chart Manipulation

Perpendicular insertion 0.3～0.5 cun. Direct moxibustion is prohibited; moxibustion with moxa sticks for 10 to 15 minutes.

bubble_chart Efficacy

Purge heart-fire, clear blood-heat.

• Classical: febrile diseases, irritability, pain in chest and hypochondriac region, coughing, vomiting, mouth sore, ulcerated tongue, bad breath, manic and depressive psychosis, frequent anger, dark urine, epistaxis, difficulty swallowing, heat in palm, jaundice, yellow eyes.
• Modern: hysteria, fatigue and weakness, inability to retract tongue.

bubble_chart Combinations

• Stomach discomfort and heart pain: Zhangmen (LR13), Laogong (PC8).
• Jaundice: Houxi (SI3), Laogong (PC8).
• Persistent hematochezia: Huiyin (CV1), Laogong (PC8), Taibai (SP3).