SI - Small Intestine Meridian
手太阳小肠经 - Shǒu Tàiyáng Xiǎochángjīng
The Small Intestine Meridian functions as the Heart's most trusted advisor, earning the title "Minister of Reception." While the Heart rules as Emperor, the Small Intestine performs the crucial task of separation and discernment—sorting what nourishes from what must be eliminated. This applies not only to physical digestion but to our mental and emotional processing of information, relationships, and life experiences.
This meridian governs our capacity for clear judgment and decision-making. It helps us distinguish between what serves our highest good and what drains our energy. The Small Intestine also controls our ability to absorb life's lessons and wisdom while releasing what no longer serves us, making it essential for personal growth and emotional maturity.
Meridian Pathway & Flow
Direction
The Small Intestine meridian flows from the hand to the head along the Yang aspect of the body
Pathway
- Origin: Begins at SI-1 (Shaoze) on the ulnar corner of the pinky fingernail
- Hand Path: Travels along the ulnar edge of the hand to the wrist
- Forearm Path: Ascends along the posterior-ulnar aspect of the forearm
- Upper Arm Path: Continues up the posterior aspect of the upper arm
- Shoulder Path: Zigzags across the shoulder blade (scapula) region
- Neck and Face Path: Travels up the neck to the cheek and ear region
- End Point: Terminates at SI-19 (Tinggong) in front of the ear canal
- Connection: Links to the Bladder meridian at BL-1 (Jingming) at the inner corner of the eye
- Internal Pathway: Branches internally to connect with the Heart, Stomach, and Small Intestine organs
Active Time
1:00 PM - 3:00 PM (Peak energy circulation)

Primary Functions
Physical Functions
- Governs nutrient absorption and waste separation
- Manages small intestine digestive activity
- Regulates fluid metabolism and distribution
- Supports neck, shoulder, and upper back mobility
- Influences hearing and ear health
- Affects arm and hand dexterity
Emotional & Mental Functions
- Governs discernment and clear judgment
- Supports decision-making capacity
- Maintains mental clarity and focus
- Helps establish emotional boundaries
- Facilitates processing of life experiences
- Assists in separating truth from falsehood
- Supports reception and integration of information
Essential Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
Therapeutic Applications
Digestive Conditions
- Poor separation of clear and turbid (TCM pattern)
- Malabsorption and nutrient deficiencies
- Digestive weakness or discomfort after meals
- Food sensitivities and intolerances
- Abdominal pain or cramping
- Irregular bowel movements
Musculoskeletal Issues
- Neck pain and stiffness
- Shoulder tension and frozen shoulder
- Upper back pain between shoulder blades
- Arm pain and numbness
- Wrist and hand problems
- Cervical spine disorders
Sensory & Neurological Issues
- Hearing problems and tinnitus
- Ear infections and pain
- Dizziness and vertigo
- Headaches, especially occipital
- Mental fog and confusion
- Poor concentration
Mental & Emotional Patterns
- Difficulty making decisions
- Poor judgment and discernment
- Information overload and mental clutter
- Inability to set boundaries
- Confusion about life direction
- Difficulty processing emotions
- Feeling overwhelmed by choices
SI Protocols
Digestive Support Routine (5-10 minutes)
- Begin at 1-3 PM (peak small intestine time) or after meals
- Start with SI-1 (Shaoze) with gentle stimulation for digestive activation
- Work SI-3 (Houxi) for overall digestive harmony
- Apply pressure to SI-8 (Xiaohai) for nutrient absorption
- End with gentle massage around the navel area while holding SI points
Neck and Shoulder Relief (7-10 minutes)
- For neck pain, shoulder tension, or upper back discomfort
- Focus on SI-11 (Tianzong) with sustained pressure for shoulder blade tension
- Work SI-14 (Jianwaishu) for shoulder mobility
- Apply pressure to SI-15 (Jianzhongshu) for upper back release
- Combine with gentle neck stretches and shoulder rolls
Mental Clarity and Decision-Making (5-8 minutes)
- For confusion, indecision, or mental fog
- Begin with SI-3 (Houxi) for mental clarity and spinal alignment
- Work SI-8 for easing mental tension
- Apply pressure to SI-19 (Tinggong) for clear hearing and perception
- End with SI-1 for refreshed focus
Hearing and Ear Support (5 minutes)
- For hearing issues, tinnitus, or ear problems
- Focus on SI-19 (Tinggong) with very gentle pressure
- Work SI-17 (Tianrong) for ear circulation
- Apply light massage around the ear while holding points
- Avoid excessive pressure near ear canal
All SI Points
Select a point to learn about its location, primary functions, clinical applications, and protocols.
Considerations
Summer Focus
- Small intestine meridian is most active in summer, particularly during hot afternoons
- Be mindful of dehydration which can affect small intestine function
Dietary Support
- Eat main meal during 1-3 PM peak time for optimal absorption
- Warm, easily digestible foods support small intestine function
- Avoid cold drinks and raw foods which can impair absorption
Mental Hygiene
- Practice discernment with information consumption
- Limit news and social media overload
- Take time for reflection and decision-making
Posture
- Maintain good posture to support meridian flow through neck and shoulders
- Take breaks from desk work and computer use
- Practice neck and shoulder stretches regularly
Boundaries
- Practice saying no to overwhelming commitments
- Create clear personal and professional boundaries
- Regular time for solitude and processing
Precautions
Pressure
- Use moderate pressure on body points, very gentle pressure around ears
- SI-19 requires extremely light touch due to proximity to ear canal
- Shoulder blade points (SI-11, SI-12) can handle firmer pressure
Ear Safety
- Never insert anything into ear canal
- Stop if experiencing dizziness or increased tinnitus
- Consult healthcare provider for persistent ear problems
Digestive Issues
- For chronic digestive weakness, work with a qualified practitioner
- Severe abdominal pain requires immediate medical attention
- Monitor food sensitivities when working with absorption
Neck and Spine
- Be cautious with neck points if history of cervical spine injury
- Avoid excessive pressure on neck vessels
- Stop if experiencing numbness or tingling in arms
Mental Health
- Decision-making difficulties may indicate underlying anxiety or depression
- Seek professional help for persistent confusion or cognitive issues
Pregnancy
- Most SI points are safe during pregnancy
- Use lighter pressure and shorter sessions
- Avoid deep work on shoulder blade area in late pregnancy
Chronic Conditions
- Autoimmune conditions affecting digestion require medical supervision
- Chronic neck problems may need physical therapy support
- Work gradually with persistent shoulder issues