SP-18 - Heavenly Stream
天溪 - Tiān xī
Point Region: Upper abdomen
SP-18 Tianxi, meaning 'Heavenly Stream,' is a point that regulates and descends Lung Qi, and benefits the breasts. Located on the chest, it is a key point for addressing a wide range of issues that are caused by 'stagnation' or excess heat in the upper body. Its name, 'Heavenly Stream,' alludes to its ability to bring a sense of order and harmony to the body's entire system.
Think of Tianxi as a point that helps to 'clear the stream' of your body. It's invaluable for addressing issues like a cough, a feeling of a 'tight' chest, and a restless spirit. By regulating and descending Lung Qi and benefiting the breasts, it helps to restore a sense of ease and freedom.
By regulating and descending Lung Qi and benefiting the breasts, SP-18 helps to restore a sense of balance and inner peace. It's a point that reminds us that our true power comes from a calm and unburdened body.
Location & How to Find
Anatomical Location: On the chest, in the 4th intercostal space, lateral to the nipple line.
How to Locate:
- Find the level of your nipple
- Move to the side from your nipple toward your armpit
- Count up to the 4th space between ribs
- The point is in this rib space lateral to your nipple

Primary Functions
Respiratory System
- Treats cough and chest congestion
- Improves lung qi circulation
- Reduces phlegm and mucus production
- Treats asthma and breathing difficulties
- Improves oxygen exchange in lungs
Circulatory System
- Improves blood circulation in chest
- Treats chest pain and heart palpitations
- Supports cardiovascular function
- Reduces blood stasis in upper body
Reproductive System
- Promotes lactation and breast milk production
- Treats breast pain and inflammation
- Improves breast health and circulation
- Treats mastitis and breast disorders
Musculoskeletal System
- Treats intercostal and rib pain
- Reduces chest muscle tension
- Improves thoracic spine mobility
Emotional & Mental
- Reduces emotional oppression and sadness
- Treats grief and heartbreak
- Promotes emotional release and openness
Clinical Applications
Primary Indications
- Cough
- Chest pain
- Mastitis
- Insufficient lactation
- Breast problems
- Respiratory problems
- Chest tightness
Related Health Concerns
Common Conditions:
Related Acupoints
Select a point to learn about its location, primary functions, clinical applications, and protocols.
SP-18 Protocols
N/A
Important Precautions
- Acute breast infections
- Breast cancer
- Recent breast surgery
- Severe mastitis