Biguan (ST31) Acupoint — Complete Guide to Accurate Location and Acupressure Technique

What is Biguan? — Definition and Characteristics

Biguan (ST31) is an acupoint belonging to the Stomach meridian (Foot-Yangming Stomach Meridian). In traditional medicine, it is viewed as “the gateway where the qi of the legs converges.”

“Bi (髀)” refers to the thigh, and “guan (關)” means gate, making it an important intersection of blood circulation and nerve distribution in the lower body.

Biguan Acupoint — Finding the Accurate Location Step by Step

The most accurate and easiest way to locate it:

1. Identify the reference point: Bring both knees together and sit in a comfortable position.
2. Move your finger: Starting from the outer upper edge of the knee, slowly move your finger upward toward the groin (inguinal region).
3. Find the depression: About 2-3 finger widths (approximately 4-5 cm) upward, there is a slightly depressed area.
4. Confirm tenderness: When gently pressed, if you feel slight tenderness (soreness), this is the accurate location.

Anatomical marker: It is located approximately 1/3 of the way up from the lower end along the line connecting the anterior superior iliac spine (the bony prominence at the front of the pelvis) and the outer edge of the kneecap.

First-time tip: If finding it alone is difficult, it is recommended to receive guidance from a professional at a traditional medicine clinic to identify the accurate location, then practice repeatedly at home.

Proper Biguan Acupressure Technique — 4 Steps

Preparation before acupressure: Relax your legs completely in a comfortable environment. Roll up your clothing so you can clearly see the acupoint.

1. Reconfirm location (30 seconds): Locate the acupoint again using your thumb or index finger. You should feel slight tenderness at the accurate location.
2. Increase pressure (3-5 seconds): Gradually increase pressure and press for 3-5 seconds. Maintain natural breathing.
3. Release pressure (2 seconds): Gradually lift your finger while releasing pressure. Do not remove it suddenly.
4. Repeat and finish: Repeat the above steps 10-15 times. After acupressure, gently massage the area with warm hands for 2-3 minutes.

Acupressure intensity standard: “Slightly uncomfortable but tolerable” (called ‘deqi’ in acupuncture terminology) is appropriate. This level of intensity is most effective and safe.

• Too light: It is difficult to expect results.
• Appropriate: You feel therapeutic effects along with slight discomfort.
• Too strong: Risk of muscle damage and bruising.

Optimal Timing and Frequency for Biguan Acupressure

Recommended frequency: 1-2 times daily, approximately 3-5 minutes per session is the standard.

Chronic pain improvement standard: When practiced regularly, effects can typically be detected within 1-2 weeks. If there is no improvement after one month of consistent practice, there may be an underlying cause, so consult a healthcare professional.

Symptoms Relieved by Biguan Acupressure

Situations That Must Be Avoided During Biguan Acupressure

Cases where acupressure must be absolutely avoided:

• During pregnancy (especially the first 3 months): While Biguan is relatively safe, if pregnancy status is uncertain, prior consultation is absolutely necessary.
• When suffering from blood disorders: Hemophilia or anticoagulant use may result in easy bruising.
• Severe diabetes: Diabetic neuropathy may result in excessive acupressure due to sensory abnormalities.
• When there are wounds or infections on the skin: That area should be avoided.

Situations that should temporarily be avoided:

• Within 1 hour after eating (may interfere with digestion)
• Excessive fatigue
• High fever or during infection
• When there is acute injury or inflammation at the acupressure site

Actions to avoid after acupressure:

• Excessive exercise immediately after acupressure (minimum 30 minutes to 1 hour rest)
• Exposure to cold air (warm compress recommended)
• Consuming cold foods (reduced effectiveness due to vasoconstriction)

Acupoints That Work Well Together with Biguan

To more effectively manage leg and knee pain, familiarize yourself with the following acupoints:

Learn more about the accurate location of the Xiyan acupoint and effective acupressure technique.

Side Effects and Normal Reactions After Acupressure

Normal reactions (most disappear within 12 hours):

• Mild muscle soreness (may be felt the next morning)
• Slight bruising or redness
• Temporary warmth in the treated area

Symptoms requiring discontinuation of acupressure and consultation with healthcare provider:

• Severe pain persisting for over 24 hours
• Severe swelling or discoloration
• New onset numbness or tingling
• Dizziness or shortness of breath

When Consultation with a Healthcare Professional is Necessary

Biguan acupressure is a complementary health management method. In the following cases, first seek diagnosis from a healthcare professional:

• When persistent pain does not improve for more than 2 weeks
• After sudden severe pain or trauma
• When swelling, fever, or color changes occur along with pain
• When accompanied by neurological symptoms (tingling, numbness, sensory abnormalities)
• When managing existing conditions (diabetes, blood disorders)
• When pregnancy status is uncertain