Yes, you can typically return home in emergency situations while studying in international universities like Germany. Most universities understand the need for students to deal with family emergencies. It's crucial to maintain open communication with your professors and the university's student services, informing them of your situation and intent to temporarily leave. Make sure you understand any academic and attendance policies, and if needed, seek advice from your university's international office. Additionally, keep your travel documents and relevant contacts readily available to ensure a smooth return and re-entry into your host country.