This is not necessarily the case; it depends on the specific situation. Firstly, we need to consider the timing of the embryo arrest. If the embryo arrest occurs within 70 days of pregnancy, generally, hospitalization is not needed, and a miscarriage can often be handled on an outpatient basis. However, if the embryo stops developing after 70 days of pregnancy, even reaching three or four months, then hospitalization is required for a induced labor. This is because the fetus is relatively larger, making outpatient treatment problematic and riskier. Additionally, we must also consider if the pregnant woman has any complications. If there are complications alongside the embryo arrest, it is generally safer to be hospitalized.