[Category]

Close (earth) hole.

[Origin]

Xiao refers to the small intestine meridian; sea refers to the gathering place of meridian qi. The acupoint is hand greater yang small intestine meridian (SI) sea point, meridian qi is as deep as the place where water flows into the sea, hence the name.

[Location]

Medial part of the elbow, the depression between the olecranon of the ulna and the medial epicondyle of the humerus . When the medial epicondyle of the humerus is in the ulnar nerve groove posterior to the medial epicondyle of the humerus, it is about 5 minutes from the lateral distance Zhoujian (EX-UE1) (olecranon of the ulna).

• Lingshu‧Benshu: "Beyond the big bone inside the elbow, the tip is half an inch deep.";
• Xunjing Kaoxue Bian >: "Tianjing (TE10) five points outside";
• Leijing Zhang Jie-bin Note: "But in Zhoujian (EX-UE1) If the lower two bones are between the bones, press the tendons with your fingers, then the soreness and numbness should be on the fingers."

[Anatomy]

• Muscle: Origin of flexor carpi ulnaris.
• Nerve: branches of medial brachial cutaneous nerve, ulnar nerve.
• Vessels: ulnar recurrent artery, vein, superior and inferior ulnar accessory artery, and vein.

[Manipulation]

Oblique insertion forward and downward 0.5~1 inch. Moxa stick warm moxibustion for 10 to 15 minutes.

[Efficacy]

Disperse Taiyang (EX-HN5) for menstrual evils, clear small intestine heat accumulation, dispelling wind Qi, and clear the mind.

• Classical: epilepsy, Hanre inability to sweat, malaria, chills, dental caries pain, wind dizziness, headache, dizziness, nape pain in elbows and armpits, swelling of cheeks, jaw and neck Pain in the back, shoulders, nape, elbows, and arms, deafness, yellow eyes, inability to lift limbs, lumbago, irritability in the lower abdomen, irritability in the heart, coldness in the back and chest, and easy madness.
• Modern: ulnar neuralgia, schizophrenia, chorea.

[Recipe]

• Psychosis: Xiaohai (SI8), Hegu (LI4), Daling (PC7), Shenmen (HT7 ), Xingjian (LR2), Xinshu (BL15).