BL33 (Zhongliao, “Zhongliao”) is an acupuncture point on the Bladder Meridian. It is located on the sacrum, in the third posterior sacral foramen. It modern research suggests BL33 may play a role in improving ovarian function by downregulating the expression of insulin-like growth factor 1 receptor (IGF-1R) mRNA in ovarian tissue. It is also identified as a central point in networks related to chronic pelvic pain.
On the sacrum, in the third posterior sacral foramen.
Needling depth for BL33 can range from 20-50 mm, with some studies indicating deep needling to 60-70 mm, aiming for the third posterior sacral foramen. Electroacupuncture is a common technique, often applied with a 50-Hz continuous wave for 30 minutes per session, or at 2/10 Hz with 0.1-1.0 mA. It is frequently used in conjunction with other Baliao points (BL31, BL32, BL34) and other points like GV1, RN4, RN3, ST36, RN6, SP6, BL23, BL20, BL28, and KI3. Moxibustion has also been used in combination with BL33.
Modern research suggests BL33 may play a role in improving ovarian function by downregulating the expression of insulin-like growth factor 1 receptor (IGF-1R) mRNA in ovarian tissue. It is also identified as a central point in networks related to chronic pelvic pain..
Modern clinical applications of BL33 include chemotherapy-related cognitive impairment, chronic pelvic pain (especially in females), poor ovarian response, and urinary incontinence. It has also been used in studies related to endometrial receptivity..
This point is located in a sacral foramen, which are typically used for local conditions.
BL33 is one of 67 points on the Bladder Meridian. Nearby points:
BL33 (Zhongliao) is located on the sacrum, in the third posterior sacral foramen.
BL33 modern research suggests BL33 may play a role in improving ovarian function by downregulating the expression of insulin-like growth factor 1 receptor (IGF-1R) mRNA in ovarian tissue. It is also identified as a central point in networks related to chronic pelvic pain. Common clinical indications include modern clinical applications of BL33 include chemotherapy-related cognitive impairment, chronic pelvic pain (especially in females), poor ovarian response, and urinary incontinence. It has also been used in studies related to endometrial receptivity.
Needling depth for BL33 can range from 20-50 mm, with some studies indicating deep needling to 60-70 mm, aiming for the third posterior sacral foramen. Electroacupuncture is a common technique, often applied with a 50-Hz continuous wave for 30 minutes per session, or at 2/10 Hz with 0.1-1.0 mA. It is frequently used in conjunction with other Baliao points (BL31, BL32, BL34) and other points like GV1, RN4, RN3, ST36, RN6, SP6, BL23, BL20, BL28, and KI3. Moxibustion has also been used in combination with BL33. Caution: Traditionally avoided or used with caution in PREGNANCY (strong qi/blood-moving or labour-promoting action).
BL33 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).