Asthma waxaa sidoo kale loo kala saari karaa atopic (extrinsic) ama non-atopic (intrinsic), iyadoo lagu saleynayo in astaamaha ay keeneen allergens (atopic) ama aan ahayn (non-atopic). In kasta oo ay jirto in la kala saaro cudurka neefta iyadoo lagu saleynayo darnaanta, xilligan la joogo ma jiro hab cad oo lagu kala saaro kooxaha hoosaadka ee kala duwan ee neefta marka laga reebo nidaamkan. Helitaanka habab lagu aqoonsado kooxaha hoosaadka ee si fiican uga jawaabaya noocyada kala duwan ee daaweynta ayaa ah hadaf muhiim u ah cilmi baarista neefta. In kasta oo ay neeftu tahay xaalad joogto ah, looma tixgeliyo inay tahay qayb ka mid ah cudurka sambabka ee joogtada ah, maadaama ereygan uu tixraacayo cudurro gaar ah oo aan la soo celin karin sida neefta oo kale (atopic) ama aan la soo celin karin (non-atopic).
atopic (extrinsic) ama aan atopic ahayn (intrinsic)