Background: Skin diseases constitute significant public health challenges among children globally, particularly in developing nations. In Northern Nigeria, the Almajiri system—a traditional Qur'anic educational model often involves children living in overcrowded, poorly ventilated environments with limited access to sanitation and hygiene facilities. These conditions contribute to a high incidence of dermatological issues, including scabies, fungal infections (e.g., tinea), impetigo, and infective dermatitis.

Methods: This study employed a quantitative, descriptive cross-sectional design guided by the Health Belief Model to determine the prevalence of skin diseases among Almajirai children in selected Qur'anic schools in Kaura-Namoda Metropolis. A stratified random sampling technique was used to select 80 respondents from five Qur'anic schools. Data were collected via a structured questionnaire validated through a pilot study conducted in Kurya town. Ethical approval was granted by the Research and Ethics Committee of the Primary Health Care Department of Kaura-Namoda Local Government. Descriptive statistics, including frequencies, percentages, and mean scores, were utilized to analyze the data.

Results: All participants (100%) were male, with the majority (84.2%) aged 6–10 years. Findings indicated a high prevalence of skin symptoms, notably skin rashes (mean = 4.7), itching (mean = 4.5), and skin lesions (mean = 3.9). The study identified poor personal hygiene, inadequate nutrition, and high-density living conditions leading to frequent skin-to-skin contact as the primary factors driving the transmission of skin diseases.

Conclusion: There is a high prevalence of skin diseases, particularly scabies, ringworm, and eczema, among Almajirai children in the study area. To mitigate these health risks, it is recommended that stakeholders prioritize health education, facilitate regular medical screenings, improve personal hygiene practices, and provide training for Qur'anic teachers on preventive dermatological care.