Gynaecology is the medico-surgical speciality devoted to the physiology of and conditions affecting the female genital system. Obstetrics is a medico-surgical speciality connected to pregnancy and labour. The main practitioners of this speciality are midwives and doctors. Bringing these two specialities together allows for holistic care to be provided to women during their lives. The Valais Hospital Obstetrics and Gynaecology Departments are located in Sion for the Valais romand region and in Visp for the Haut-Valais region.

Concentrating these specialists in the two sites of Sion and Visp ensures a high level of competence. With over 1700 births in the Centre Hospitalier du Valais Romand (CHVR) in 2011, Valais Hospital currently runs the third largest maternity department in French-speaking Switzerland. Together with the 670 births in the Centre Hospitalier du Haut-Valais (SZO), almost 2400 babies were born in Valais Hospital in 2011.