The outermost gateway of the upper back. Fufen (BL-41) sits at the very top of the second Bladder line — the wider, outer row of back points — where Wind and Cold most easily invade the body. Its specialty is releasing stiffness and pain along the neck, upper back and shoulder, and dispersing pathogenic influences that have lodged there.
Name & story
The name 附分 Fufen is usually rendered as "Attached Division" or "Branching Wall". "Fu" (附) means to attach or to be close to — and indeed this point attaches itself to the inner Bladder line, running beside it like a faithful companion along the upper back. "Fen" (分) means to divide or branch — it marks the point where the Bladder Meridian (BL) splits into its second, outer trajectory as it descends the back. Together the name quietly tells the story of the point: the place where the channel divides and the outer branch begins its long journey downward.
Point family & character
Fufen (BL-41) belongs to the Bladder Meridian (BL). It is the first point of the outer Bladder line on the back — the line that runs 3 Cun lateral to the midline, as opposed to the inner line at 1.5 Cun. It is also the meeting point of the Bladder Meridian (BL) and the Small Intestine Meridian (SI), giving it a broader reach across the upper back and shoulder region.
Five-element dynamics
The Bladder Meridian (BL) belongs to the Water element and carries a strong Yang quality — it is the longest channel in the body, running from the inner corner of the eye all the way down the back, through the legs, to the little toe. Along the back it travels in two parallel lines, and Fufen (BL-41) opens the outer line at the very top, near the upper thoracic region. This position — high, exposed, on the outermost layer of the back — makes it a natural first point of contact for external pathogenic factors such as Wind and Cold, which tend to attack the upper back and neck first. Releasing these influences before they penetrate deeper is the point's quiet but important role.
Location
Fufen (BL-41) is found on the upper back, 3 Cun lateral to the lower edge of the spinous process of the second thoracic vertebra (T2). It sits at the same spinal level as BL-12, but on the outer Bladder line rather than the inner one, close to the medial edge of the shoulder blade.
Anatomy & fascia
The point lies in the upper back, over the medial border of the scapula, in the region of the rhomboid and trapezius muscles.
Needling
The needle is inserted obliquely, directed slightly toward the spine or along the skin — never straight down, as the lung lies beneath this region of the back.
Safe depth
0.5–0.8 Cun obliquely.
Moxa, cupping & Tui Na
Moxa and cupping are both well suited to this point, especially when Cold or Wind has settled into the upper back, causing stiffness and aching. Gentle Tui Na massage along the outer Bladder line, starting from Fufen (BL-41) downward, is a classic way to release tension in the rhomboid and trapezius area. Warming methods are particularly appropriate when the condition is aggravated by cold weather or cold environments.
Functions
Expels Wind and Cold from the upper back and neck; Relaxes the sinews and relieves pain; Opens and unblocks the Bladder Meridian (BL) in the upper back and shoulder region.
Indications
Stiffness, pain and tension in the neck, upper back and shoulders — especially when brought on or worsened by exposure to Wind or Cold. Restricted movement of the neck and shoulder. Pain radiating along the inner edge of the shoulder blade. Numbness or heaviness in the upper back.
Point combinations
With BL-12 (Fengmen) — to strengthen the dispersal of Wind and Cold from the upper back; both points share the same spinal level and work well together. With BL-13 (Feishu) — when the lungs are involved and there is accompanying cough or a sensation of cold in the upper body. With SI-11 and SI-12 — for pain and stiffness around the scapula and shoulder.
Clinical spotlight
Fufen (BL-41) is a relatively quiet point in practice, but it has a clear and focused role: it is the entry gate of the outer Bladder line at the top of the back, and it excels at releasing Wind and Cold that have lodged in the upper back and neck. Its meeting with the Small Intestine Meridian (SI) gives it added reach into the shoulder and scapular region. Clinicians often pair it with points on the inner Bladder line at the same level — particularly BL-12 (Fengmen) — to sweep the upper back clean of external pathogenic factors. Its oblique needling direction is a gentle reminder of what lies beneath: the lung, always worth protecting.
The golden tip
If your neck and upper back are stiff and achy — especially after being out in the cold or wind — ask someone to apply firm but gentle thumb pressure along the outer edge of the muscles beside your upper spine, starting from just below the base of the neck. Warming the area with a heat pack or a warm towel for 10–15 minutes can help Cold and tension release from the muscles. Keeping the upper back and neck covered in cold or windy weather is also the simplest prevention — the upper back is, in Chinese medicine, one of the first places Wind enters the body.
For education only — not medical advice. Consult a qualified practitioner.