Risks of massage
Massage is generally safe as long as it's done by a trained therapist. But
massage isn't for everyone. And for some people it can even be
dangerous. Discuss massage with your doctor before making an
appointment if you have:
Burns or open wounds on the area to be massaged.
Had a recent heart attack.
Cancer - you'll want to avoid direct pressure on the tumor area.
Deep vein thrombosis.
Unhealed fractures.
Rheumatoid arthritis in the area to be massaged.
Severe osteoporosis.
In addition, talk to your doctor before getting a massage if you're pregnant.
Massage done properly rarely leads to severe injuries. If any part of your
massage doesn't feel right or is painful, speak up right away. Most
serious problems come from too much pressure during massage. In rare
circumstances, massage can cause:
Internal bleeding
Nerve damage
Temporary paralysis
Talk to your doctor and your massage therapist if you have any concerns
about your risk of injury. Asking questions can help you feel more at
ease.
http://www.mayoclinic.com/health/massage/SA00082