Which of the following is a cancer warning sign involving the respiratory system?

• A. Nagging Cough
• B. Change In Moles
• C. Bloating
• D. Weight Gain

Answer: (D)

A persistent, nagging cough is a warning sign tied to the respiratory system because tumors or other issues in the lungs or airways can irritate tissues and produce a cough that lasts weeks and doesn’t go away with usual remedies. This kind of chronic cough is a common signal to get checked, especially if it lasts more than a couple of weeks or is accompanied by blood, shortness of breath, or chest pain. The other options point to cancers in different areas: a change in moles relates to skin cancer; bloating can be a sign of abdominal or pelvic cancers; and weight gain is not a typical cancer warning sign (weight loss is more commonly observed). If the cough persists, seek medical evaluation promptly.