1) The composition of lymph fluid is similar to that of blood plasma, except with white blood cells instead of red. 
2) It is an open system and it has no pump (like the heart in the circulatory system). Lymph has to be manually facilitated in order to move, through contract of muscle tissues during physical exercise or through specific manual therapy techniques.
3) When the swelling around an injury goes down, that is your lymphatic system at work.
4) Lymph is created when interstitial fluid is taken in by lymphatic capillaries.
5) Women have an estimated 20-30% larger lymphatic structure than men.
6) Lymph generally does not flow backwards. However, if the pressure within the capillary walls is elevated, the flow of lymph fluid can become stagnant enough to allow back flow and cause edema.
7) The lymph system is like an automatic flushing toilet, preventing waste from building up in your body.
8) Tonsils are a cluster of lymphatic cells.
9) Morning mucus can be a sign of clogged lymph ducts.
10) The two main lymph outlets are in your mid-back, and improper flow/drainage can cause discomfort to these areas.