Final answer:
The medical term for pain in Osgood-Schlatter's syndrome is Traction apophysitis.
Step-by-step explanation:
Osgood-Schlatter's syndrome is a condition that commonly affects young athletes, particularly those involved in activities that involve running and jumping. It is characterized by pain and swelling at the tibial tuberosity, which is where the patellar tendon inserts into the shinbone. The pain is typically exacerbated by physical activity and can be accompanied by a visible lump or bump. Traction apophysitis describes the inflammation and pulling of the growth plate at the tibial tuberosity due to repetitive strain on the patellar tendon, leading to pain.