The main causes of patellar tendinitis recurrence are returning to the sport prematurely while in an incomplete state of recovery, failure to correct the underlying causes (muscle imbalances or biomechanical defects), and a sudden increase in training volume. The recurrence rate within six months of returning to sports is reported to be 30–40%, so maintaining an eccentric squat program is crucial for preventing recurrence. Foot pronation correction insoles or taping are also effective as supplementary measures to reduce recurrence. From a Korean medicine perspective, recurrence occurs when only the outwardly manifested symptoms are resolved while underlying fundamental weakness remains. Even after pain subsides, if blood and fundamental energy are insufficient, the tendons can become vulnerable again at any time. At Dongjedang, we aim for a recurrence-free exercise lifestyle by strengthening fundamental functions with herbal medicine tailored to the individual's constitution even after pain has disappeared, and by providing step-by-step guidance on when to resume exercise and the intensity.