This study is a survey that we conducted in the health zone of Bwamanda, more precisely at the general hospital of reference of BWAMANDA, city province of Sud-Ubangi, in the Democratic Republic of Congo for a period of three months from July to September 2022. Its purpose is to assess the knowledge and practices of providers in the management of side effects related to the use of modern contraceptive methods among beneficiaries, users or clients. The approach that led this research is the analytico-descriptive coupled method of investigation. It targeted a population made up of 18 providers working at the Bwamanda HGR, mainly those involved in the family planning service and to some extent, expected to manage complications resulting from the use of modern contraceptive methods (MCM). If maternity is considered in Africa as a mark of social consideration and marital security, family planning (FP) is positioned as a remedy for birth control, maternity or even maternal deaths. Nevertheless, taking contraceptives is not without side effects, which create, rightly or wrongly, detachment or even disinterest in the methods adopted. The study was induced by the recurrence of side effects potentially related to contraceptive use among women of childbearing age. More than 70% of participants were reviewed in consultation, including young people under 30. The good management (PEC) of these side effects remains the key to attracting new acceptants and the success of the PF. The study was able to highlight menstrual disturbances, amenorrhea, sexually transmitted infections (STIs) as side effects of MCAs encountered in Bwamanda; while regarding the level of knowledge and practices related to PEC of theseci, the study placed it at a threshold lower than acceptable (35%) according to the grid developed for this purpose. In practice, the study revealed that the acts of service providers are modeled on standardized models and do not take into account the specific specificities of each client, let alone the context.