We present an unusual case of 31 year old lady with a longitudinal tear of flexor hallucis longus(FHL) caused by trauma. Tendonitis of the FHL, well known as dancers tendonitis, can be characterized by triggering of the great toe. As the foot is brought into plantar flexion with a forcible active contraction of the FHL, a snap is noted in the region of the posteromedial aspect of the ankle. Magnetic resonance imaging may be helpful in establishing diagnosis. The patient has obtained longterm satisfactory relief of her symptoms with surgical treatment. The literature on tendonitis of the FHL is reviewed with a reported case.