Some researchers reported greater TGF‐β1 expression in CRSwNP patients compared with healthy subjects,20, 21 while others found the opposite.22, 23 Although we did not analyze TGF‐β1 expression in the nasal mucosa from healthy subjects, our present finding of TGF‐β1 expression may be consistent with the latter result. The gene discussed is TGFB1; the disease is chronic rhinosinusitis with nasal polyps.