BL4 (Quchai, “Quchai”) is an acupuncture point on the Bladder Meridian. It is located on the head, 1.5 cun lateral to the anterior midline, located 0.5 cun posterior to the anterior hairline. This places it 1.5 cun lateral to the point Shenting (GV24). It expels wind, clears the head and eyes, alleviates pain, and opens the nasal passages.
On the head, 1.5 cun lateral to the anterior midline, located 0.5 cun posterior to the anterior hairline. This places it 1.5 cun lateral to the point Shenting (GV24).
Transverse (subcutaneous) insertion, 0.3 to 0.5 cun, often directed posteriorly along the scalp.
Expels wind, clears the head and eyes, alleviates pain, and opens the nasal passages..
Headache, vertex pain, head swelling, body heat, inability to sweat, heart vexation and fullness, nasal congestion, nosebleed, nasal sores, unclear vision, dizziness, neck swelling, epilepsy, convulsions..
Quchai is a primary local point for frontal and vertex headaches, particularly when associated with nasal symptoms like congestion or discharge. Its ability to clear wind and heat makes it useful for the early stages of external invasions presenting with fever, headache, and an absence of sweating. Clinically, it is often combined with other local and distal points to address sinus pressure, rhinitis, and eye-related issues stemming from wind-heat.
BL4 is one of 67 points on the Bladder Meridian. Nearby points:
BL4 (Quchai) is located on the head, 1.5 cun lateral to the anterior midline, located 0.5 cun posterior to the anterior hairline. This places it 1.5 cun lateral to the point Shenting (GV24).
BL4 expels wind, clears the head and eyes, alleviates pain, and opens the nasal passages. Common clinical indications include headache, vertex pain, head swelling, body heat, inability to sweat, heart vexation and fullness, nasal congestion, nosebleed, nasal sores, unclear vision, dizziness, neck swelling, epilepsy, convulsions.
Transverse (subcutaneous) insertion, 0.3 to 0.5 cun, often directed posteriorly along the scalp.
BL4 is a point on the Bladder Meridian (Zú Tài Yáng Páng Guāng Jīng).