Shangqiu SP-5 is an important point with various functions.
Most importantly, it treats Painful Obstruction Syndrome due to Dampness, especially in ankles and knees. As the River-Jing point of the Channel, it is the place where Qi is diverted to bones, sinews and joints. Thus SP-5 benefits the sinews and joints greatly. Typical manifestations include pain or contraction of the ankle, sinew and inner thigh.
Furthermore, the point regulates the Intestines, characterized by abdominal distension, borborygmi, diarrhoea, undigested food in stools and constipation.
Finally, Shangqiu SP-5 calms the Mind and opens the Mind's orifices. Typical symptoms are depression, agitation, excessive pensiveness, inappropriate laughter, nightmares and melancholy.