Table 3.

Common acupoints with a frequency greater than 20%.

Rank	Acupoint	Frequency (n/%)	Location
1	ST36	41 (80.39%)	On the lateral calf, 3 cun below ST35, on the line between ST35 and ST41.
2	BL23	40 (78.43%)	In the spinal region, 1.5 cun lateral to the lower border of the spinous process of the second lumbar vertebra.
3	SP6	33 (64.71%)	In the medial calf, 3 cun above themedial malleolus, on the posterior border of the medial aspect of tibia.
4	KI3	25 (49.02%)	In the ankle region, posterior to the medial malleolus, in the depression between the tip of the medial malleolus and tendo calcaneus.
5	SP8	22 (43.14%)	In the medial calf, 3 cun below SP9, on the posterior border of the medial aspect of tibia.
6	CV12	22 (43.14%)	In the epigastric region, 4 cun above the umbilicus, on the anterior midline.
7	SP9	19 (37.25%)	In the medial calf, in the depression of the lower border of the medial condyle of the tibia.
8	BL20	19 (37.25%)	In the spinal region, 1.5 cun lateral to the lower border of the spinous process of the eleventh thoracic vertebra.
9	SP10	18 (35.29%)	In the anterior femoral region, 2 cun above the medial end of patellar floor, on the bulge of the vastus medialis.
10	CV4	16 (31.37%)	In the lower abdomen, 3 cun below the umbilicus, on the anterior midline.
11	ST25	14 (27.45%)	On the abdomen, at the level of the umbilicus, 2 cun lateral to umbilicus.
12	LR3	14 (27.45%)	On the dorsum of the foot, between the first and second metatarsals, the anterior depression at the junction of the bases of the metatarsals.
13	ST40	13 (25.49%)	In the lateral calf, 8 cun sperior to the external malleolus, on the outer edge of the tibialis anterior muscle.
14	LI4	12 (23.53%)	On the dorsum of the hand, in the middle of he 2nd metacarpal bone on the radial side.
15	EX-B3	12 (23.53%)	In the spinal region, 1.5 cun lateral to the lower border of the spinous process of the eighth thoracic vertebra.
16	BL30	11 (21.57%)	In the sacral region, at the level of the fourth posterior sacral foramen, 1.5 cun lateral to the middle sacral crest.
17	LI11	11 (21.57%)	At the elbow, the midpoint of position of the line connecting LU5 and the lateral epicondyle of the humerus.
18	BL18	11 (21.57%)	In the spinal region, 1.5 cun lateral to the lower border of the spinous process of the ninth thoracic vertebra.
19	BL43	11 (21.57%)	In the spinal region, 3 cun lateral to the lower border of the spinous process of the fourth thoracic vertebra.
20	CV3	11 (21.57%)	In the lower abdomen, 4 cun below the umbilicus, on the anterior midline.

*ST35 is located in the anterior knee area, in the lateral depression of the patellar ligament. ST41 is located in the ankle area, in the central depression in front of the ankle joint. LU5 is located in the elbow area, on the transverse crease of the elbow, in the depression of the radial edge of the biceps tendon.