BL32 (Second Bone Hole)

次髎cì hé

Bladder Meridian

Location of acupuncture point BL32 (Second Bone Hole)

Indications

151

Protocols

Location

On the sacrum medial and inferior to the posterior superior iliac spine just at the 2nd posterior sacral foramen.

Cautions

Caution in sacroiliac dysfunction.

Indications

Conditions for which BL32 is listed as indicated. An indication list is a reference index, not a prescription – see the protocols below for sourced treatments.

Benefit Back Lumbar Benefit Back Lumbar Benefit Defecation Benefit Defecation Benefit Legs Benefit Legs Benefit Regulate Jiao Lower Benefit Urination Benefit Urination Stomach Rumbling Stomach Rumbling Constipation Diarrhoea Watery Diarrhoea Watery Shan Disorder Shan Disorder Below Heart Bloating Below Heart Bloating Defecation Problems Defecation Problems Urinary Problems Urinary Problems Menstrual Cramps Hardness Below Heart Hardness Below Heart Hemiplegia Infertility Vaginal Discharge Vaginal Discharge Leucorrhea Vaginal Discharge Red Leucorrhea Vaginal Discharge Red White Vaginal Discharge White Vaginal Discharge Back Lumbar Numbness Back Lumbar Numbness Inferior Limbs Numbness Inferior Limbs Numbness Pain Lower Back Pain Lower Back Pain Childbirth Pain Childbirth Pain Genital Pain Genital Pain Sacrum Pain Sacrum Pain Irregular Periods Period / Menstruation Irregular Regulate Jiao Lower Urinary Retention Urinary Retention Sciatica Bi Arthralgia Leg Syndrome Bi / Arthralgia Leg Syndrome Painful Urination Painful Urination Urine Dark Urine Dark

Protocols using BL32

The 50 best-sourced of 151, ranked by strength of evidence. The count above is the full figure.

Low Back Pain, Pelvic Girdle Pain, Sacroiliac Pain, Symphysis Pain, Pregnancy Second Trimester, Pregnancy Third Trimester – LI04, ST36, SP12, BL26, BL32, BL33, BL54, BL60, KD11, GB30, GV20 (doi:10.1186/1472-6882-8-34 ↗)
Pregnancy Post-term, Labor Induction – LI04, SP06, BL32, BL54 (doi:10.1080/14767050902906386 ↗)
Bladder Dysfunction Neurogenic, Incontinence Urinary – BL32, CV03, CV04 (doi:10.1093/ecam/nep010 ↗)
Back Pain, Sciatica Pain, Herniated Nucleus Pulposus – BL23, BL24, BL25, BL26, BL31, BL32, BL33, BL34, BL40, BL57, BL60, GB30 (doi:10.1093/ecam/nep085 ↗)
Fatigue, Insomnia, Irritability, Hot Flashes – SP06, HT07, BL15, BL23, BL32, PC06, GB34, LV03, GV20 (doi:10.1016/j.urology.2010.03.033 ↗)
Dysmenorrhea, Menstrual Pain, Qi-blood Stagnation, Mood Changes – LI04, SP04, SP06, SP08, SP10, BL32, LV03, CV03, CV06 (doi:10.1093/ecam/nep239 ↗)
Dysmenorrhea, Menstrual Pain, Mood Changes, Qi-blood Deficiency – ST36, SP06, SP08, BL17, BL20, BL32, CV04, CV06 (doi:10.1093/ecam/nep239 ↗)
Dysmenorrhea, Menstrual Pain, Mood Changes, Damp-heat Lower-jiao – LI11, ST28, ST29, ST40, SP06, SP09, BL22, BL32, GB34, LV02 (doi:10.1093/ecam/nep239 ↗)
Back Low Pain, Acute Pain, Referred Pain – LI04, BL29, BL30, BL31, BL32, BL40, BL54, BL58, BL62, KD03, GB30, LV03, GV03, GV04 (doi:10.1186/1745-6215-12-241 ↗)
Urinary Retention, Incomplete Bladder Emptying, Stroke Sequelae – SP06, BL28, BL32 (doi:10.2147/CIA.S37531 ↗)
Lumbar Pain, Low-back Pain – BL23, BL24, BL25, BL26, BL32, BL40, BL60, GB30, GB34 (doi:10.1155/2013/872142 ↗)
Constipation, Urinary Incontinence, Urinary Retention, Bladder Dysfunction Neurogenic, Bowel Dysfunction Neurogenic, Spinal Cord Injury Traumatic – BL32, BL33, BL35 (doi:10.1155/2013/543174 ↗)
Anxiety, Night Sweats, Infertility Female, Hot Flashes, Vaginal Dryness, Mood Swings, Amenorrhea Premature, Menopause Premature – ST25, ST28, ST29, ST36, SP06, BL32, KD03, GB13, LV03, CV03, CV04, GV20, GV24 (doi:10.1155/2014/718675 ↗)
Enuresis Nocturnal, Bedwetting – ST36, SP04, SP06, SP12, HT07, HT09, BL23, BL28, BL32, KD03, KD05, CV02, CV03, CV06, GV04, GV15, GV20 (doi:10.1177/147323000303100611 ↗)
Obesity, PCOS, Insulin Resistance, Hormonal Imbalance – ST25, SP06, BL17, BL32, CV06, CV12 (doi:10.1016/s0254-6272(13)60166-1 ↗)
Labor Pain, Anxiety Labor, Delivery Pain – BL32 (doi:10.1155/2014/129208 ↗)
Dysmenorrhea, Menstrual Pain, Abdomen Lower Pain – ST36, SP06, SP08, SP10, BL23, BL32, LV03, CV03, CV04, CV06 (doi:10.1155/2015/752194 ↗)
Incontinence Urinary Stress, Incontinence Urinary Mixed, Incontinence Urinary Urgency – SP03, SP06, BL14, BL18, BL20, BL23, BL28, BL31, BL32, BL33, BL34, KD03, KD07, PC06, LV03, CV03, CV04, CV06, GV04, GV20 (doi:10.1136/acupmed-2015-010828 ↗)
Labor Pain, Labor Prolonged – BL32 (doi:10.5539/gjhs.v8n3p236 ↗)
Urinary Retention Post-stroke, Bladder Dysfunction Incomplete Emptying – BL31, BL32, BL33, BL34 (doi:10.1186/s13063-016-1315-3 ↗)
Spinal Cord Injury, Bladder Dysfunction Neurogenic, Urinary Retention Chronic – SP06, SP09, BL23, BL28, BL31, BL32, BL33, BL34, CV02, CV03, CV04, CV06 (doi:10.1155/2016/9245186 ↗)
Labor Pain – BL32 (doi:10.1016/s0254-6272(15)30149-7 ↗)
Dizziness, Headache, Syncope, Menstrual Pain, Uterine Bleeding Dysfunctional, Dysmenorrhea Severe, Menstruation Irregular, Clots Menstrual – LU07, LI04, LI11, ST29, ST36, ST40, ST44, SP04, SP06, SP08, SP09, SP10, SI03, BL23, BL32, BL62, KD03, KD06, KD07, KD14, GB41, GB43, LV03, CV03, CV04, CV06, GV04, GV20, GV24 (doi:10.1136/bcr-2018-224725 ↗)
Constipation, Urinary Incontinence, Incontinence Post-surgical – BL32, BL33, BL34 (doi:10.1097/MD.0000000000015687 ↗)
Infertility Female, Hypomenorrhea, Menstrual Irregularity, Fallopian Tube Obstruction Bilateral, Diminished Ovarian Reserve – ST25, BL32, BL33, CV04 (doi:10.1097/MD.0000000000017160 ↗)
Dysuria, Nocturia, Urinary Frequency, Urinary Urgency, Benign Prostatic Hyperplasia, Urinary Obstruction – BL32, BL33 (doi:10.1155/2019/1439141 ↗)
Dysmenorrhea Primary, Menstrual Pain, Pelvic Pain – LI04, ST28, ST36, SP10, BL20, BL32, BL54, LV03 (doi:10.1155/2019/7978180 ↗)
Coccyx Pain, Low-back Pain, Fracture Coccyx, Coccydynia – BL23, BL25, BL32, GV20 (doi:10.1097/MD.0000000000018860 ↗)
Diarrhea, Abdominal Pain, Ulcerative Colitis, Blood In Stool – BL31, BL32, BL33, BL34 (doi:10.1186/s12906-020-03101-4 ↗)
Frequency Urinary, Urgency Urinary, Discomfort Urinary Catheter-related, Suprapubic Pain, Agitation Postoperative – BL32, BL33, BL34, CV03, CV04, CV05, CV06, CV07 (doi:10.1155/2021/6691459 ↗)
PCOS, Infertility Anovulatory, Hyperandrogenism, Menstrual Irregularity Oligomenorrhea – LI04, ST25, ST29, SP06, SP09, BL32, LV03, CV04, GV20 (doi:10.1097/MD.0000000000028674 ↗)
Insufficient Lactation, Urinary Retention Postpartum, Uterine Contraction Postpartum Pain, Depression Postpartum – BL31, BL32, BL33, BL34, KD01, CV08 (doi:10.1001/jamanetworkopen.2022.13261 ↗)
Fatigue, Nausea, Diarrhea, Waist Pain, Dysmenorrhea Primary, Menstrual Pain, Lower-abdomen Pain – SP06, BL31, BL32, BL33, BL34, CV04 (doi:10.1155/2022/1281336 ↗)
Nocturia, Urinary Retention Postoperative, Voiding Difficulty – SP06, BL32, CV03, CV04 (doi:10.2147/CIA.S382912 ↗)
Urinary Retention Postoperative, Postoperative Anal Pain, Anal Bloating, Hemorrhoids Mixed Postoperative – BL32, BL33 (doi:10.1007/s00384-023-04403-y ↗)
Dizziness, Tinnitus, Forgetfulness, Knee Pain, Heel Pain, Infertility Female, Lumbosacral Pain, Infertility Advanced-reproductive-age, Kidney-qi-deficiency, Menstruation Dim-color, Menstruation Thin-texture, Libido Decreased – ST25, SP06, BL23, BL32, KD03, KD12, TB03, LV03, CV04, CV12, GV20 (doi:10.1097/MD.0000000000034768 ↗)
Fatigue, Constipation, Abdominal Distension, Voiding Dysfunction, Urinary Retention Acute, Herpes Zoster Sacral – SP06, BL32, BL33, CV02, CV03 (doi:10.1097/MD.0000000000036007 ↗)
Chronic Pain, Low Back Pain, Disability Low Back – SP06, BL23, BL31, BL32, BL33, BL60 (doi:10.1016/j.jams.2018.02.002 ↗)
Fatigue, Dysmenorrhea, Acne, Obesity Abdominal, PCOS, Anovulation – ST25, BL23, BL32, GB26 (doi:10.13702/j.1000-0607.20230575 ↗)
Fatigue, Dizziness, Tinnitus, Depression, Absent Periods, Dysmenorrhea, Insomnia, Infertility, Arthralgia, Oligomenorrhea, Hot Flashes, Vaginal Dryness, Premature Ovarian Insufficiency – SP06, SP10, BL18, BL20, BL23, BL32, KD16, CV04, CV06 (doi:10.3389/fmed.2024.1357824 ↗)
Nocturia, Urinary Frequency, Urinary Urgency, Overactive Bladder, Urge Incontinence – SP06, BL32, BL35, KD03, CV03 (doi:10.2147/IJWH.S494135 ↗)
Infertility, Obesity, PCOS, Insulin Resistance, Hyperandrogenism, Ovulatory Dysfunction – ST25, SP06, BL23, BL32, KD03, KD12, GB13, LV03, CV04, CV12, GV20, GV24 (doi:10.3389/fendo.2024.1509152 ↗)
Depression Postpartum, Mood Disorder Postpartum, Anxiety Postpartum, Insomnia Postpartum, Postpartum Mood Changes – BL31, BL32, BL33, BL34, KD01, CV08 (doi:10.1159/000543477 ↗)
Fecal Incontinence, Sleep Disturbance, Defecation Frequent, Evacuation Incomplete, Bowel Urgency – BL31, BL32, BL33, BL34, GV01 (doi:10.3389/fmed.2025.1517325 ↗)
Fracture Coccyx, Sacrococcygeal Pain, Subluxation Coccyx, Difficulty Sitting – BL31, BL32, BL33, BL34 (doi:10.1097/MD.0000000000044068 ↗)
Incontinence Urinary, Incontinence Stress, Prostatectomy Post-radical, Postoperative Radical Prostatectomy – BL32, BL33, BL34 (doi:10.1001/jamanetworkopen.2025.34491 ↗)
Fatigue, Anxiety, Depression, Lumbar Pain, Abdomen Lower Pain, Pelvic Chronic Pain, Bowel Dysfunction Constipation – ST25, SP06, BL23, BL32, BL33, BL35, CV03, CV04, CV12 (doi:10.2147/IJWH.S541559 ↗)
Urinary Incontinence Stress, Pelvic Floor Dysfunction – ST36, SP06, BL23, BL24, BL31, BL32, BL33, BL34, BL35, CV03, CV04 (doi:10.11817/j.issn.1672-7347.2025.240242 ↗)
Urinary Retention, Spinal Cord Injury, Urinary Retention Spinal Cord Injury – BL32, BL33 (doi:10.13702/j.1000-0607.20250263 ↗)
Premature Ejaculation, Sexual Dysfunction – ST36, SP12, SP13, BL23, BL27, BL28, BL29, BL30, BL31, BL32, BL33, BL34, BL47, KD01, KD03, CV04, CV06 (doi:10.4103/0973-6131.113408 ↗)

BL32 (Second Bone Hole)

Location

Cautions

Indications

Protocols using BL32

Other points on the Bladder Meridian