What fluid flows into lymphatic capillaries that originates as lymph fluids?

The fluid that flows into lymphatic capillaries is called interstitial fluid. This fluid is derived from blood plasma that leaks out of capillaries into the surrounding tissues, where it bathes cells and facilitates nutrient and waste exchange. As interstitial fluid accumulates, it is collected by lymphatic capillaries and transformed into lymph, which then travels through the lymphatic system.