Xiao, Small; hai, sea. Xiao refers to the Small Intestine Meridian, and this is its He-Sea Point. The arrival of Qi and blood at this point is like water flowing into the sea.
In the depression between the olecranon of the ulna and the medial epicondyle of the humerus. The point is located with the elbow flexed.
Chorea, epilepsy, mental disorder, stiff neck, aching of elbow and arm.
Perpendicularly 0.3-0.5 cun.