The most obvious signs before a dog is about to give birth mainly include the following:

1. The dog will appear restless before giving birth, and may keep scratching the floor and mats with its front feet, looking for a quiet and peaceful place. Warm place to prepare for birth.

2. Most dogs will lose their appetite or even stop eating within 24 hours before giving birth.

3. The dog's body temperature will gradually drop before giving birth, usually 24 hours before giving birth. to about 36℃.

4. The dog's breasts will become swollen and full. Some dogs can express milk from their nipples during a period of time before giving birth.