Starling forces

Dr Daniel J Bell and Dr Justin Rich et al.

Starling forces describe the movement of fluids between the vasculature and interstitial spaces. Fluid movement is determined by the balance of hydrostatic and osmotic pressure gradients 1.

Starling forces

Net pressure = [ (Pc - Pi) - (pc - pi) ]


  • Pc = hydrostatic pressure of the capillary
  • Pi = hydrostatic pressure of the interstitium
  • pc = osmotic pressure of the capillary
  • pi = oncotic pressure of the interstitium

The balance between these forces determines the net pressure which dictates the direction of fluid movement 1.

Article information

rID: 74087
System: Cardiac, Vascular
Section: Pathology
Synonyms or Alternate Spellings:

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