What does this traffic sign indicate?

This traffic sign indicates a first aid station or medical help nearby. It is a blue square sign with a red cross on a white background in the center. In German traffic rules, such signs are used to inform drivers of available medical facilities or emergency aid points close to the road. Recognizing this sign is important as it helps drivers know where to go or find assistance in case of health emergencies. It is not a warning of danger or an intersection, but specifically points to medical help.