Contact Dermatitis from Wearable Fitness Device
Case at a Glance
A 50-year-old female presents with new-onset skin lesions on her wrist after 3 years of intermittent fitness tracker use, raising concerns about contact dermatitis versus thermal injury.
Patient's Story
The patient reports developing unusual marks on her wrist area after wearing a fitness tracking device. She has been using the device intermittently for approximately 3 years without previous issues. The lesions appeared recently and are characterized as non-pruritic but mildly tender. She notes that the marks appear to be expanding even after discontinuing device use, which prompted her to seek medical evaluation. She is concerned these may represent burn injuries from the device.
Initial Assessment
Physical examination reveals skin lesions on the wrist consistent with the pattern of a wearable device. The patient appears otherwise well with no systemic symptoms. The lesions are localized to the area of device contact and show characteristics of an inflammatory skin reaction.
The Diagnostic Journey
Given the temporal relationship between device use and symptom onset, along with the characteristic distribution pattern, differential diagnosis included contact dermatitis (both allergic and irritant types), thermal burns, and pressure-related skin injury. The progression of lesions despite device removal suggested an ongoing inflammatory process.
Final Diagnosis
Allergic contact dermatitis secondary to wearable fitness device materials, likely nickel or rubber components commonly found in such devices.
Treatment Plan
Immediate discontinuation of the fitness device, topical corticosteroid application to reduce inflammation, and avoidance of known contact allergens. Patient education regarding hypoallergenic alternatives and proper device hygiene practices.
Outcome and Follow-up
Patient advised to monitor for resolution of lesions over 1-2 weeks with prescribed treatment. Follow-up recommended if symptoms persist or worsen. Patch testing may be considered if recurrent episodes occur with alternative devices.