Foreign body (FB) aspiration is a relatively common problem in children, particularly during the first 3 years of life. It is an emergency condition and the removal of the FB by bronchoscopy is the primary treatment. Children with undiagnosed retained foreign bodies may present with respiratory symptoms including recurrent or persistent wheezing, with or without respiratory failure. Spontaneous expectoration of a FB is a rare occurrence. Herein, we present a case that was diagnosed with FB aspiration during investigation for persistent wheezing and who expectorated part of a sunflower seed 2 months after aspiration.