The flexor hallucis longus originates from the posterior surface of the fibula and the interosseous membrane and inserts at the base of the distal phalanx of the great toe. Its primary function is to flex the great toe and assist with plantarflexion of the ankle, contributing to push-off during gait. Common pathologies include FHL tendinopathy or tenosynovitis, often seen in dancers and athletes due to repetitive overuse or friction within the fibro-osseous tunnel behind the medial malleolus. Re