剖宫产
In 1882 he introduced the practice of sutural closure of the uterus following Caesarean section operations. The previous autumn, Ferdinand Adolf Kehrer (1837-1914) performed the first lower segment Caesarean section in Europe. Sänger's contribution preserved the mother's uterus and helped reduce the chance of infection. Afterwards, Kehrer and other surgeons adopted Sänger's methodology.