1. Normal dog milk is milky white. If it is abnormal yellow, it may be mastitis or high bilirubin. It can be sent to a pet hospital for examination, and it is better to do targeted treatment after determining the cause.
2. If there is no smell, it is just transparent mucus, which should be normal secretion and will happen before the dog is in estrus. In addition, there are open and closed pus accumulation in the uterus of dogs, but the secretion has an odor. If you continue to secrete mucus, it is determined that it is not suitable for estrus. It is recommended to go to the hospital for specific examination to rule out the possibility of uterine empyema and treat it symptomatically.