A recent retrospective study looked at dogs with skin lesions in high grass contact areas to establish if they have a version of a pruritic condition found in humans. Contact dermatitis is a type IV hypersensitivity reaction that occurs when chemicals known as haptens come into contact with skin. Dogs that develop reactions to contact with grass may experience a similar pathogenesis to what humans experience as protein contact dermatitis which is triggered by insect or animal proteins.
Source: Clinician’s Brief, August 2023. Link.