They should only be given by a trained, certified prenatal massage therapist. https://rixuree.com/%ED%9A%A8%EA%B3%BC%EC%A0%81%EC%9D%B8-%EB%A7%88%EC%82%AC%EC%A7%80-%EB%B8%94%EB%A1%9C%EA%B7%B8-%EA%B1%B4%EA%B0%95%EA%B3%BC-%EC%9B%B0%EB%B9%99%EC%9D%98-%EB%B9%84%EB%B0%80%EC%9D%84-%EB%B0%9C%EA%B2%AC/