Lymphatic drainage obtained with mechanical equipment. There are several types of equipment available on the market, which promote lymphatic drainage according to different mechanisms. The most common ones employ alternate pneumatic systems, which, by raising skin pressure in a sequential way in the various districts and along a caudo-cranial direction, enhance the centripetal flow of the lymph in lymphedematous limbs toward the major lymphatic structures of the trunk. The main action of this method is to drain the liquid component of the edema, with only an indirect impact on the fibrotic and protein component of the lymphatic edema.