About 3cm below the knee joint is the stopping point of each person’s quadriceps tendon, down through the patella after forming the patellar ligament, which is often referred to as the tibial tuberosity area, which is a normal protrusion, a normal physiological anatomical structure, especially in the case of a lot of exercise thigh muscles are very developed, it will appear more obvious. As long as there is no specific pain in the area, it does not need to be treated. If there is a protrusion along with a certain amount of pain, it is possible that there has been a lot of activity recently and a lot of activity, resulting in sterile exudative inflammation in the area. The common one for children underage is osteochondritis of the tibial tuberosity, and for adults it could be tendonitis, bed rest for a period of time, avoid strenuous exercise, do hot compresses, physical therapy or topical application of blood circulation, stasis, pain relief creams will be able to get better.