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Objectives: The primary aim of this study was to evaluate the number of patients reported to a hospital with injuries from consumer fireworks in the months December–January in the past 10 years, and to describe the association between the type of fireworks, injury pattern, treatment, and permanent impairment. Methods: A multicenter, retrospective, observational case series. Patients were selected from two hospitals in the Southwest Netherlands: a level 1 trauma center and a specialized burn center. All patients with any fireworks-related injuries treated between December 1 and January 31, during 2007 (December) to 2017 (January), were eligible for participation. The primary outcome was the number of patients with any type of injury caused by fireworks. The secondary outcome measures were patient and injury characteristics, treatment details, and whole person impairment (WPI). The percentage WPI expresses a patient’s degree of permanent impairments as a result of fireworks-related injuries. Results: Of the 297 eligible patients, 272 patients were included. From 2007 to 2017, between 21 and 40 patients were treated, and no clear increase or decrease was observed in the number of patients and in the number of patients per type of fireworks. Explosive fireworks mainly caused upper extremity (N = 65; 68%) injuries, while rockets (N = 24; 41%) and aerials (N = 7; 41%) mainly affected the head/neck. Decorative fireworks predominantly resulted in burns (N = 82; 68%), and explosive fireworks in soft tissue lacerations (N = 24; 25%), fractures (N = 16; 17%), and amputations (N = 14; 15%). Patients injured by explosive and homemade fireworks were most often admitted to a hospital (respectively N = 24; 36% and N = 12; 80%), and resulted in the highest proportion undergoing surgical procedures (respectively N = 22; 33% and N = 7; 47%). WPI found in this study was between 0 to 95%, with a median of 0%. In 34 (14%) patients, the injuries resulted in a WPI of ≥1%, mostly as a resul