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(There are twenty-two acupoints in total on both lower limbs and thighs.)

1. Yinbai (SP1): Two points, Wood element. Located at the medial end of the big toe, approximately the width of a leek leaf from the corner of the toenail. It is the point where the Foot-Taiyin Spleen Meridian Qi emerges, classified as a Jing-Well point. Indications: Abdominal distension, asthma and chest fullness, inability to lie down comfortably, vomiting, difficulty eating, sudden diarrhea, epistaxis, sudden syncope with loss of consciousness, cold feet that cannot be warmed. Needle insertion depth: 3 fen. Additionally indicated for women with prolonged menstrual bleeding beyond the expected period; needling this point can stop it immediately.

2. Dada (SP2): Two points, Fire element. Located in the depression distal to the metatarsophalangeal joint of the big toe. It is the point where the Foot-Taiyin Spleen Meridian Qi flows, classified as a Ying-Spring point. Indications: Febrile diseases with anhidrosis, cold extremities, abdominal fullness with frequent vomiting, irritability and restlessness, regurgitation, vertigo. Moxibustion: 3 cones; Needle insertion depth: 3 fen.

3. Taibai (SP3): Two points, Earth element. Located in the depression below the medial cuneiform bone (nuclear bone) on the medial side of the foot. It is the point where the Foot-Taiyin Spleen Meridian Qi pours into, classified as a Shu-Stream point. Indications: Fever, irritability and fullness, abdominal distension, food stagnation, vomiting, purulent bloody diarrhea, low back pain, difficult defecation, rebellious Qi with cholera-like symptoms, severe abdominal pain. Moxibustion: 3 cones; Needle insertion depth: 3 fen.

4. Gongsun (SP4): Two points. Located 1 cun posterior to the metatarsophalangeal joint of the big toe, connecting to the Luo-connecting vessels of the Yangming and Taiyin meridians. Indications: Cold malaria, lack of appetite, sudden facial edema, heart vexation, delirious speech, abdominal deficiency bloating resembling a drum. Moxibustion: 3 cones; Needle insertion depth: 4 fen.

5. Shangqiu (SP5): Two points, Metal element. Located in the slight depression anterior to the medial malleolus. It is the point where the Foot-Taiyin Spleen Meridian Qi travels, classified as a Jing-River point. Indications: Abdominal distension, borborygmus and constipation, spleen deficiency causing melancholy, body coldness, frequent sighing, heart sorrow with rebellious Qi, hemorrhoids, bone abscesses with ulceration, infertility, nightmare sleep. Moxibustion: 3 cones; Needle insertion depth: 3 fen.

6. Sanyinjiao (SP6): Two points. Located 3 cun directly above the tip of the medial malleolus, in the depression behind the tibia. It is the intersection of the Foot-Taiyin Spleen, Foot-Jueyin Liver, and Foot-Shaoyin Kidney meridians. Indications: Masses and accumulations, abdominal cold, pain in the medial knee and thigh, rebellious Qi, dysuria, heaviness of the body due to spleen disease, inability to move the four limbs, abdominal distension with borborygmus, loose stools, food stagnation, uterine bleeding in women. Moxibustion: 3 cones; Needle insertion depth: 3 fen. Historically, Crown Prince Song was skilled in medicine. Encountering a pregnant woman in the imperial garden, he diagnosed, "This is a female fetus." Xu Wenbo also diagnosed, "It is one male and one female." The Crown Prince, impatient, wished to dissect to verify. A minister requested acupuncture, draining Sanyinjiao and tonifying Hegu (LI4). The fetus fell immediately upon needling, confirming Wenbo's diagnosis. Thus, pregnancy contraindicates unnecessary needling.

7. Lougu (SP8): Two points, also known as Taiyin Luo. Located 6 cun directly above the tip of the medial malleolus, in the depression behind the tibia. Indications: Cold qi associated with masses and accumulations, heart and abdominal fullness, poor nutritional conversion from diet, bi-syndrome due to dampness preventing prolonged standing. Needle insertion depth: 3 fen.

8. Diji (SP8): Two points, also known as Pi She (Spleen Residence), the Xi-Cleft point of the Foot-Taiyin Spleen Meridian. Located 5 cun below the knee. Indications: Blood masses in women, sensation of heat pouring from the medial thigh to the knee upon palpation, loose stools in men, abdominal and hypochondriac Qi distension, edema with hard abdomen, lack of appetite, dysuria. Moxibustion: 3 cones; Needle insertion depth: 3 fen.

9. Yinlingquan (SP9): Two points, Water element. Located in the depression below the medial condyle of the tibia on the medial side of the knee, accessed with the leg extended. It is the point where the Foot-Taiyin Spleen Meridian Qi enters, classified as a He-Sea point. Alternatively accessed with the knee flexed. Indications: Abdominal cold, lack of appetite, sub-diaphragmatic fullness, water retention with hard abdomen, asthma and rebellious Qi preventing supine position, low back pain preventing bending or straightening, cholera, hernia and masses, urinary dysfunction, Qi strangury, irregular chills and fever. Needle insertion depth: 5 fen.

10. Xuehai (SP10): Two points. Located 2 cun superior to the medial border of the patella, at the junction of white skin. Indications: Uterine bleeding with dark blood, irregular menstruation, rebellious Qi and abdominal distension. Moxibustion: 3 cones; Needle insertion depth: 5 fen.

11. Jimen (SP11): Two points. Located above the medial head of the gastrocnemius muscle ("fish belly"), between the tendons, where the arterial pulse is palpable in the medial thigh. Another interpretation in the *Neijing* places it among the raised muscles in the upper thigh. Indications: Strangury, urinary incontinence, swelling and pain in the inguinal region (rat groin), urinary obstruction. Moxibustion: 3 cones.