In ancient times, the medical level was underdeveloped, and it was very dangerous and painful for women to have children. Therefore, the ancients called their birthday "Mother's Day", that is to say, on this day many years ago, the mother suffered a lot in order to give birth to herself, and expressed her respect and gratitude to her on her birthday in this way.
Extended data
Mother's Day
Source: Bai Yuan's "War in jing yuan Language" Volume III: "Near Hongji, Liu Jizhai, Shu people will sit in the temple to burn incense on their birthdays, saying' the day when the father is worried about the mother'." "?
Vernacular translation: Liu Jizhai is very generous. Every birthday, he will take a bath, change clothes and sit still for a day. He said: The day I was born was the day my father worried about my mother's suffering. In this way, I can express my gratitude to my parents.
Baidu Encyclopedia-Mother's Day
People's Network-People's Daily Dajiangdong Studio: On Mother's Day, nothing is like painless delivery.