Beginning in the first trimester of pregnancy, the body begins to produce the hormone relaxin, which loosens the expectant mother's muscles, joints and ligaments to help her body accommodate a growing baby and prepare for birth. When Edward Rodriguez, MD, Ph.D., Chief of Orthopedic Trauma in the Department of Orthopedic Surgery at Beth Israel Deaconess Medical Center (BIMDC) observed that patients with a common and painful joint condition called arthrofibrosis experienced long-lasting relief during and after pregnancy, he reached out to his colleagues in the lab to confirm his suspicion that relaxin could explain the phenomenon.
* This article was originally published here
