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POINT: UB-39 (URINARY BLADDER-39)  

English: Outside of the Crook
Also Known As: Ascending Yang
Ascending Light
Important Yang
Commission the Yang
Supporting Yang
Entrusting Yang
  • Lateral to UB-40 Weizhong, on the medial border of the tendon of the biceps femoris muscle.
  • With the patient lying prone, this point can be found on the back of the knee, 1 cun lateral to UB-40 Weizhong.
  • At the back of the knee, on the popliteal crease and towards its lateral end, in the depression medial to the tendon of the biceps femoris.
    Note: locate this point with the knee slightly flexed.
  • Straight insertion, 1 to 1.5 cun, causing distention and soreness extending to the thigh.
  • Lower He-Sea (Uniting) point of the San Jiao
  • Regulates water pathways
  • Benefits the Bladder
  • Stimulates the transformation of Fluids in the Lower Jiao
  • Harmonizes the San Jiao
  • Regulates urination
  • Activates the channel
  • Alleviates pain
  • Stiffness and pain of the lower back
  • Distention and fullness of the lower abdomen
  • Edema
  • Dysuria
  • Anuria
  • Leg and foot cramps
  • Fullness of the chest or abdomen
  • Low back pain extending to the abdomen
  • Loss of urine
  • Retention of urine
  • Hemorrhoids
  • Constipation
  • Prostatitis
  • Painful urinary dysfunction
  • Urinary tract infection
  • Knee pain and stiffness
  • Contraction and pain of the leg and foot
  • Paralysis of the lower extremities
  • Generalized spasms
  • All types of syncope
  • Fever in tuberculosis
  • Fullness of the sides
  • Chest fullness
  • Fever and chills
  • Low back pain
  • Nephritis
  • Cystitis
  • Chyluria
  • Urinary incontinence
  • Spasms of the gastrocnemius muscle
  • Burning on urination
  • Difficult urination
  • Edema of the ankles
  • Urinary incontinence
  • Enuresis
  • Stifling sensation in the chest and hypochondrium
  • Numbness or muscle spasm of the lower extremities
  • Pain and swelling of the axilla
  • Abdominal distention
  • Impotence
  • Numbness

UB-52
Zhishi
UB-33
Zhongliao

UB-22
Sanjiaoshu
UB-28
Pangguanshu
REN-3
Zhongji

REN-5
Shimen

REN-7
Yinjiao

Urinary incontinence

Dribbling urination

Chyluria

Hardness and pain in the lower abdomen that radiates to the genitals with inability to urinate

KI-10
Yingu
LIV-1
Dadun
LIV-14
Qimen
UB-40
Weizhong

PC-1
Tianchi

or

PC-1
Tianchi

UB-62
Shenmai
GB-42
Diwuhui
GB-38
Yangfu
GB-41
Zulinqi

UB-37
Yimen
SP-3
Taibai
SP-9
Yinlingquan
LIV-2
Xingjian

Involuntary erection with difficult urination

Swelling of the axilla

Lumbar pain with inability to bend and extend

  • This point is good for water metabolism.
  • Its main use is for difficulty in passing urine as in prostatitis.
  • This is a deep Spirit point.