The benefit of underwater massage is the combination of massage with the effects of a warm bath and movement in the water environment. The procedure takes place in a special large tub with water at a temperature of approximately 37 °C and using jets that are controlled by the therapist. He can use the inclination of the nozzles and their distance from the patient's body to change the intensity and character of the massage. After completing the massage, a significant relaxation of the muscles is noticeable, accompanied by mild fatigue. It also increases blood flow to the skin and supports the activity of the lymphatic system, which is responsible for excreting unwanted substances. The relatively high temperature of the water in conjunction with the massage brings relief from any pain in the musculoskeletal system and increases the mobility of the joints. Indications for underwater massage are therefore chronic inflammatory and degenerative diseases of the joints and spine, blood circulation disorders, post-traumatic conditions, swelling, and of course the relaxing effect cannot be neglected. Contraindications to underwater massage are bleeding and magnesium conditions.