SP10 (Xuèhǎi, “Sea of Blood”) is the Point of the Sea of Blood point of the Spleen Channel Meridian. It is located on the medial aspect of the thigh, superior to the patella. Classical sources vary, placing it 2, 2.5, or 3 cun superior to the superomedial corner of the patella, at the margin between the red and white skin, on the bulge of the vastus medialis muscle when the knee is flexed. It regulates Blood, cools Blood, invigorates Blood, harmonizes menstruation.
On the medial aspect of the thigh, superior to the patella. Classical sources vary, placing it 2, 2.5, or 3 cun superior to the superomedial corner of the patella, at the margin between the red and white skin, on the bulge of the vastus medialis muscle when the knee is flexed.
Perpendicular insertion 1.0 to 1.5 cun. Oblique insertion proximally or distally is also used.
Regulates Blood, cools Blood, invigorates Blood, harmonizes menstruation.
Women's irregular menstruation, menstrual bleeding that does not stop, amenorrhea (blood closed and not flowing), uterine bleeding (beng zhong), persistent uterine bleeding with foul-smelling blood (lou xia e xue), postpartum bleeding, abdominal distension due to rebellious qi, lower abdominal pain, lower body sores, various skin sores.
As its name 'Sea of Blood' implies, SP10 is a paramount point for any disorder involving the Blood, whether heat, stasis, or deficiency. It is indispensable in gynecology for regulating menstruation and stopping abnormal uterine bleeding. It is also a key point in dermatology for skin conditions characterized by heat in the blood, such as eczema, urticaria, or psoriasis, often presenting with redness and itching.
Classical text; the translation was prepared with AI and is not clinical advice.
《針灸逢源》 Zhēnjiǔ Féngyuán — Sources of Acupuncture & Moxibustion, Li Xuechuan, 1815 · 卷四 · 經穴考正 · 足太陰脾經穴考 · Source: jicheng.tw ↗
血海（一名百蟲窠） 在膝臏上一寸。 內廉白肉際陷中（針五分。 灸五壯）治一切血疾According to this text, SP10 (also Baichongke) lies 1 cun above the kneecap, in the depression at the edge of the red and white skin on the inner side; needle 0.5 cun, moxibustion 5 cones. It was used for all blood disorders.
《備急千金要方》 Bèijí Qiānjīn Yàofāng — Essential Prescriptions Worth a Thousand Gold for Emergencies, c. 650 · 第三十 · Source: Wikisource ↗
漏下，若血閉不通逆氣脹，刺血海，入五分，灸五壯，在膝臏上內廉白肉際二寸半The text records that for uterine spotting, or blocked menses with counterflow qi and distension, SP10 was needled 0.5 cun with 5 moxa cones; it lies 2.5 cun above the kneecap at the inner edge of the white skin.
《類經圖翼》 Lèijīng Túyì — Illustrated Wings to the Classified Canon, Zhang Jiebin, 1624 · 卷六 · 經絡（四） · 足太陰脾經穴 · Source: jicheng.tw ↗
血海（一名百蟲窠） 在膝臏上一寸內廉白肉際陷中。 一云在膝內輔骨上，橫入五分。 刺五分，灸五壯。 主治女子崩中漏下，月事不調，帶下，逆氣腹脹，先補後瀉。 又主腎藏風，兩腿瘡癢濕不可當According to this text, SP10 lies 1 cun above the kneecap on the inner side at the edge of the white skin (or above the inner condyle); needle 0.5 cun, moxibustion 5 cones. It was used for flooding and spotting, irregular menses, vaginal discharge and counterflow qi with abdominal distension, tonifying first and then draining, and also for kidney-wind with unbearable itchy damp sores on both legs.
SP10 is one of 21 points on the Spleen Channel Meridian. Nearby points:
SP10 (Xuèhǎi) is located on the medial aspect of the thigh, superior to the patella. Classical sources vary, placing it 2, 2.5, or 3 cun superior to the superomedial corner of the patella, at the margin between the red and white skin, on the bulge of the vastus medialis muscle when the knee is flexed.
SP10 regulates Blood, cools Blood, invigorates Blood, harmonizes menstruation. Common clinical indications include women's irregular menstruation, menstrual bleeding that does not stop, amenorrhea (blood closed and not flowing), uterine bleeding (beng zhong), persistent uterine bleeding with foul-smelling blood (lou xia e xue), postpartum bleeding, abdominal distension due to rebellious qi, lower abdominal pain, lower body sores, various skin sores.
Perpendicular insertion 1.0 to 1.5 cun. Oblique insertion proximally or distally is also used. Caution: The Qian Jin Yi Fang lists Xuehai as a point that should not be needled or moxibusted if there is no disease.
SP10 is a point on the Spleen Channel Meridian (Zú Tài Yīn Pí Jīng).