This point is located on the inner side of thigh (referred to as "Yin" (陰)) and lies between two tendons (referred to as "bao" (包), to surround).

bubble_chart Location

Yinbao (LR9) acupoint
(adapted from "Meridians and Acupoints")

On the inner side of thigh, four cun above medial epicondyle of femur, in the depression between vastus medialis muscle and sartorius muscle.

• Zhenjiu Jiayi Jing: "Four cun above knee, between two tendons on the inner side of thigh";
• Zhenjiu Juying: "Obtained by curling foot, located in the groove on the inner side of knee."
• Additionally, Xunjing Kaoxue Bian: "According to Mingtang , it is one cun above Xuehai (SP10)";
• Zhenjiu Jicheng: "Horizontally aligned with Yinshi (ST33)". There are slight discrepancies in the measurements described.

bubble_chart Anatomy

• Muscles: midpoint of adductor longus muscle; deep layer, adductor brevis muscle.
• Nerve: anterior femoral cutaneous nerve, superficial and deep branches of obturator nerve.
• Vessels: femoral artery, vein, superficial branch of medial circumflex femoral artery.

bubble_chart Manipulation

Perpendicular insertion 1 to 2 cun. Moxibustion with moxa cone 3 to 5 times, moxibustion with moxa stick for 5 to 10 minutes.

bubble_chart Efficacy

Regulate menstruation and qi, dredge and regulate water passage.

• Classical: irregular menstruation, lumbago, abdominal pain, enuresis, dysuria, pain in waist and hip radiating to lower abdomen.
• Modern: endometritis.

bubble_chart Combinations

• Irregular menstruation: Yinbao (LR9), Ligou (LR5).
• Uterine prolapse: Qihai (CV6), Yinbao (LR9), Sanyinjiao (SP6) .