There are many symptoms of discomfort in dogs during their menstrual period, such as loss of appetite, swelling of the vagina, frequent urination, constipation, frequent licking of the butt, deterioration of spirit, increased frequency of urination, and unstable mood. Of course, these conditions do not include all dogs, because there are individual differences, and there are dogs with severe symptoms and dogs with no symptoms.

It takes about a month from the start of bleeding to the complete end of estrus. Generally, after the first estrus bleeding, it will occur on average twice a year, but it may be more frequent in small dogs, and it may only occur once a year in large dogs.

Generally speaking, there is a certain seasonality in estrus, usually in spring and autumn. Wearing menstrual pants for dogs can prevent secretions from contaminating the floor.