This report details violations in Sudan in December 2025, amid the ongoing conflict that began in April 2023. It documents serious infractions against civilians, such as killings, attacks on educational, commercial, and medical facilities, arbitrary arrests, enforced disappearances, sexual violence against women and girls, unfair trial procedures, home seizures, and restrictions on public freedoms. The report also highlights how these violations affect health and humanitarian conditions, including mass displacement, disease outbreaks, and malnutrition. It provides a comprehensive overview of the country's human rights and humanitarian crisis in December 2025.