Her Arm Was Unbearably Swollen and Painful. What Was Causing It?

Everything changed after she took a class to improve her serve. In 30 minutes she must have hit 100 serves, and that familiar pain returned. This time it stayed. She decided to take a break to give her arm a chance to heal, but it was still sore when they traveled to their beach rental in Montauk a week later. By then, the pain seemed different. It was no longer the sore-muscle-and-tendon discomfort she had become used to. This felt deeper: an ache that spread throughout her shoulder, down to her elbow. Even before they went to Montauk, the woman noticed that her shoulder looked a little swollen. The day her husband sent her to the E.R., the swelling had spread down the arm to the wrist.