ST-40 - Abundant Bulge
丰隆 - Fēng lóng
Point Region: Shin
ST-40 Fenglong, meaning 'Abundant Bulge,' is the 'Luo-Connecting' point. Located on the leg, it is a master point for transforming 'phlegm' and calming the mind. Its name, 'Abundant Bulge,' alludes to its ability to bring a sense of order and harmony to the body's entire system.
Think of Fenglong as a point that helps to 'transform the bulge' of your body and mind. It's invaluable for addressing issues like a feeling of heaviness or a thick chest, a cough with phlegm, and a restless spirit. By transforming phlegm and calming the mind, it helps to restore a sense of ease and freedom.
By transforming phlegm and calming the mind, ST-40 helps to restore a sense of balance and inner peace. It's a point that reminds us that our true power comes from a clear and unburdened body.
Location & How to Find
Anatomical Location: On the anterior aspect of the leg, midway between the knee and ankle, one finger-breadth lateral to the tibia's anterior crest.
How to Locate:
- Find the midpoint between your kneecap and ankle bone
- Move 1 finger-width toward the outside from your shin bone
- This is usually the most prominent part of your shin muscle
- The point is in this muscular bulge
Primary Functions
Digestive System
- Transforms phlegm and dampness in digestive system
- Treats chronic gastritis and stomach weakness
- Improves metabolism and nutrient absorption
- Reduces food stagnation and bloating
Respiratory System
- Treats cough and phlegm accumulation
- Relieves chest congestion and breathing difficulty
- Transforms lung phlegm and dampness
Nervous System
- Calms the mind and reduces anxiety
- Treats mental fog and unclear thinking
- Improves mental clarity and focus
Emotional & Mental
- Reduces worry and overthinking
- Calms emotional agitation and restlessness
- Improves emotional stability
Musculoskeletal System
- Treats lower leg pain and weakness
- Relieves muscle tension and spasms
Clinical Applications
Primary Indications
- Phlegm disorders
- Headache
- High blood pressure
- Limb swelling
- Abdominal pain
- Difficulty urinating
- Difficulty defecating
- Mental fogginess
- Obesity
- Fluid retention
Related Health Concerns
Common Conditions:
Related Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
ST-40 Protocols
Phlegm Clearing & Mental Clarity (4 minutes)
- Sit with leg relaxed and accessible
- Locate ST-40 (8 cun superior to the lateral malleolus, two finger-widths lateral to the tibia)
- Apply firm pressure for 30 seconds on each leg
- Massage in circular motions for 1 minute to clear dampness and support clarity
- Repeat pressure while breathing deeply and relaxing the chest
Important Precautions
- Recent leg surgery
- Severe cardiovascular disease
- Acute leg injury