28yr f, knee pain, MRI says joint effusion & chondromalacia. I swim for exercise. 0 injuries. What could cause this? Treatment possibilities? Thanks

? Of mid-20's female. ? of chronic knee pain with effusion. In a young female the observations which should be made are whether she has Hypermobility Syndrome (Brighton Criteria) & genu varum/valgus. Absent acute injury, repetitive gravitational stress can evoke non-linear patellar mobility & patellofemoral wear & tear. See an Osteopath & Podiatrist. Reconfigured shoes might help realign the longitudinal axis of leg.