Symptoms of dogs in heat:

1. When dogs are in heat, they will have symptoms such as being irritable and restless, barking in the middle of the night, etc.

2. Male dogs will urinate everywhere, and female dogs will have bloody secretions from their vaginas. They will be restless, irritable, have a decreased appetite, and are willing to accept behaviors such as male dogs crawling on their crotches.

3. After the female dog enters the estrus period, she will have symptoms such as loss of appetite, scratching the ground, red and swollen vagina with red secretion flowing out, raised buttocks, and acting coquettishly.

Things to note when a dog is in estrus:

1. If the owner does not plan to breed the dog, then appropriately comfort the dog during the estrus period. Emotions and reduce the chance of contact with strange dogs.

2. During the estrus period, the dog's vagina will bleed, and the area around the vagina will be dirty. Therefore, during this period, the owner should wash the dog with warm water every day to keep the vagina clean.

3. If you want your dog to bleed from his vagina without soiling your home, you can wear menstrual pants for him.