Inflammation of the bronchi (bronchitis), often accompanied by cough, phlegm, and breathing difficulties. A medical term.
彼はひどい咳で病院に行ったら、気管支炎と診断された。
He went to the hospital for a severe cough and was diagnosed with bronchitis.
冬は気管支炎が悪化しやすいので、暖かく過ごすことが大切だ。
Bronchitis tends to worsen in winter, so it's important to keep warm.
子どもが気管支炎になると、長引く咳が続くことが多い。
When children get bronchitis, they often have a prolonged cough.