Chronic bronchitis is commonly known as "old chronic bronchitis." Its main symptoms are coughing and expectoration. These symptoms are chronic and recurrent, and the onset is gradual. Coughing and expectoration are usually more pronounced in the morning and may consist of white, sticky phlegm or frothy sputum. Occasionally, there may be blood in the phlegm, but significant hemoptysis or chest pain generally does not occur. A small portion of chronic bronchitis patients may experience wheezing, which some of them might describe as chest tightness, meaning that chest tightness can occur in some chronic bronchitis patients. Those experiencing wheezing are referred to as having asthmatic bronchitis. Additionally, some patients may also have coexisting conditions like bronchial asthma or, in later stages, chronic obstructive pulmonary emphysema, which can also lead to symptoms of chest tightness, shortness of breath, or respiratory difficulty.