The urinary system includes the kidneys, ureters, bladder and urethra. Its main function is the elimination of liquid waste from the body, but it also plays an important role in salt and water balance in the body. Kidneys also produce several hormones, some of which control blood pressure and create red blood cells. Blood is filtered through the kidneys where waste and toxins are eliminated while water and needed minerals are recycled. Every day, the kidneys filter 30-37 gallons of blood! (https://www.niddk.nih.gov/health-information/kidney-disease/kidneys-how-they-work)
Massage helps with fluid flow throughout the body. Massage pushes waste from muscles in to the lymphatic system. The waste then moves into the blood stream and is filtered by the kidneys. This is why it is important for clients to drink plenty of water after a massage, as the increased level of toxins leaving the body can create flu-like symptoms if dehydrated. Discomfort from bladder or kidney issues, such as incontinence or kidney stones, can be also be addressed through reflexology.