A 46-year-old woman came to our hospital 4 months after undergoing a tracheostomy performed at a different hospital. The endotracheal tube had been removed, and granulation tissue was present at the site of the tracheostomy. A magnetic resonance imaging scan and bronchoscopy indicated granulation tissue also present within the trachea. Two injections of triamcinolone (Kenacort-A), a synthetic adrenocortical hormone preparation, initially caused reduction in and then the disappearance of the granulation tissue, thus showing this hormone effective for its elimination. Granulation tissue formation subsequent to tracheostomy causes stenosis of the airway. The present case demonstrates an effective means for countering this problem.