Hemoptysis has numerous possible causes, including tracheobronchial, pulmonary parenchymal, and pulmonary vascular diseases. In the primary care setting, major causes are acute and chronic bronchitis, tuberculosis, lung cancer, pneumonia, and bronchiectasis. By: https://www.instagram.com/p/CbGCgpfvSVT/?igshid=YmMyMTA2M2Y=