Dissemination of national programs in terms of birth control cannot be successful without collaborators at localities. They are people who go from door to door to share with other people…Although family condition is not so better-off, Ms. Nguyen Thi Cuc, who is a health care collaborator living at Tan An hamlet, Tan Vinh Hiep commune, Tan Uyen district, is enthusiastic about doing her job. She said: “My husband and I are workers knitting chairs at home with a daily income of VND100,000/person. We also feed cattle, do farming for living. Additionally, I work as health collaborator in order to widen my knowledge of growing up children, keeping houses, breeding facilities hygienic, then communicate to people for a better environment…”. With her friendliness, zeal, targets of birth control were in control, third childbirth has decreased in recent years.   Ms. Cuc (right end) was on her dutyRetired teacher 56-year-old Phan Thi Mai Hoa has done thid job for 13 years. She is the former vice principal of Hoa Thuy Tien kindergarten at Tan Phuoc Khanh town. According to Ms. Hoa, although there are a lot of works, it would okay if we have a proper time schedule. Whenever coming to people’s houses, she propagandize many medical programs at the same time like malnutrition prevention, pregnant women caring, how to lose weight for obese children, gender equality…To areas having many workers, these female collaborators coordinate with lodging proprietors and have to go at night, because that is the time workers finish their work. It was done by Tran Thi Thuy Nga, who is 48 years old at Vinh Phu ward, Thuan An town. She has worked as a collaborator of birth control, growing up well children… for 5 years. She also share information of how to take care of pregnant women whenever talking with first-time mothers. Official of TDM City’s Health Center Ms. Nguyen Thi Ngoc Huong appreciated birth control implementation, which has no small contributions of collaborators. According to Ms. Huong, birth control requires going from door to door, agreement between population and health care to have comprehensive effects.These female collaborators have not been afraid of difficulties, do not need much benefits, they have engaged energetically in their job, because they believe, having too many children caused poverty and that was the right thing to do.Reported by Quynh Nhu – Translated by Ngoc Huynh