The 4 clefts.
Si = 4 and Feng = cleft.
Location of Sifeng
Sifeng is the group of 8 points located on the proximal interphalangeal joints (excluding the thumb).

Therapeutic functions and clinical indications of Sifeng
- Bleed Sifeng when there is Damp-Heat, digestive system disorders ;
- They are massaged in children who vomit, have little appetite or have gastroenteritis;
- They are local points for injuries and finger osteoarthritis.