In this Article

• Introduction to massage therapy
• What is massage therapy, and what are the types of massage?
• Who provides massage therapy?
• What do massage therapists do in treating patients?
• What are side effects and risks of massage therapy?
• What are some other points to consider about massage therapy as complementary and alternative medicine?
• What are the health benefits of massage therapy?
• Where can people get more information about massage therapy?
• Massage Therapy Index

Some other points to consider about massage therapy as CAM

• Massage therapy should not be used to replace your regular medical care or to delay seeing a doctor about a medical problem.



• Before you decide about having massage therapy, ask the therapist about:



• Her training, experience, and any licenses or credentials



• Any medical conditions you have and whether she has had any specialized training or experience with them



• The number of treatments that might be needed



• Cost



• Insurance coverage, if any



• If a massage therapist suggests using other CAM practices (herbs or other supplements, a special diet, etc.), discuss it first with your regular health care provider.



• For findings from research studies on massage therapy for various health conditions, see "For More Information." However, the available literature is limited, and more research is needed to make firm conclusions.

How massage therapy might work

Scientists are studying massage to understand what effects massage therapy has on patients, how it has those effects, and why. Some aspects of this are better understood than others. For example, it is known that:

• When certain forces are applied to the muscles, changes occur in the muscles (although those changes are not clearly understood or agreed upon).



• Massage therapy typically enhances relaxation and reduces stress. Stress makes some diseases and conditions worse.

There are many more aspects that are not yet known or well understood scientifically, however. Some of the proposed theories 3 are that massage:

• Might provide stimulation that may help block pain signals sent to the brain (the "gate control theory" of pain reduction).



• Might shift the patient's nervous system away from the sympathetic and toward the parasympathetic. The sympathetic nervous system helps mobilize the body for action. When a person is under stress, it produces the fight-or-flight response (the heart rate and breathing rate go up, for example; the blood vessels narrow; and muscles tighten). The parasympathetic nervous system creates what some call the "rest and digest" response (the heart rate and breathing rate slow down, for example; the blood vessels dilate; and activity increases in many parts of the digestive tract).



• Might stimulate the release of certain chemicals in the body, such as serotonin or endorphins.



• Might cause beneficial mechanical changes in the body--for example, by preventing fibrosis (the formation of scar-like tissue) or increasing the flow of lymph (a fluid that travels through the body's lymphatic system and carries cells that help fight disease).



• Might improve sleep, which has a role in pain and healing.



• Might provide some health benefit from the interaction between therapist and patient.

More well-designed studies are needed to understand and confirm these theories and other scientific aspects of massage.