Chiggers on dogs return as a seasonal itch issue

Chiggers are back on the seasonal radar for dogs, with Whole Dog Journal outlining a familiar but often underrecognized warm-weather problem: larval trombiculid mites picked up in brush, tall grass, and other dense vegetation can leave dogs intensely itchy, especially in late summer and early fall. The condition, known as trombiculosis, typically shows up as clusters of tiny orange-red larvae on sparsely haired areas such as the head, ears, feet, or belly, and can cause redness, papules, crusting, hair loss, and persistent itch even after the larvae detach. Merck Veterinary Manual notes diagnosis is usually based on exposure history, lesion pattern, and direct examination or skin scrapings, while Whole Dog Journal’s April 20, 2026 article by licensed veterinary technician Kate Basedow frames the infestation as annoying but generally straightforward to manage. (merckvetmanual.com)

Why it matters: For veterinary professionals, chiggers are less a major infectious disease story than a practical differential diagnosis and client-education issue. Chigger lesions can resemble allergic dermatitis or other ectoparasite problems, so recognizing the seasonal pattern and common lesion distribution may help reduce unnecessary workups and get dogs relief faster. Merck says treatment follows the general approach used for mange, with mite-killing therapy tailored by the veterinarian and additional care for secondary infections when scratching has damaged the skin. PetMD’s veterinary sources add that dogs are partly protected by their coat, but bites commonly affect the face and ears, and that acaricidal preventives may also help kill or repel chiggers. (merckvetmanual.com)

What to watch: As outdoor exposure increases, expect more client questions about itchy dogs after walks, and watch for opportunities to reinforce prevention, parasite control, and when a skin workup is warranted. (merckvetmanual.com)