Mobile application: digital health card for deaf adolescents.

To develop a mobile health application (mHealth) accessible to deaf adolescents, based on their health card, promoting autonomy to the access to the user's health information. This was a methodological study, divided into three stages: a questionnaire to understand the knowledge of deaf adolescents about the health card, and development of the application using videos in Brazilian Sign Language Libras, Android Studio platform with Java language, and evaluation of the application. Most deaf adolescents were not aware of the health card. The application has two interface modes: male and female card, with the particularities of each sex. Furthermore, user's data security is carried out in accordance with the Brazilian General Data Protection Law. The application received a score of 85.5 from experts, being classified as "good" to "excellent" in terms of usability. The application provides information from the health card in text and video in Libras, according to the selected sex, promoting adolescents' autonomy in accessing health information. Future implementations may include expansion to other mobile platforms.