Postpartum depression (PPD) affects 10 to 20 percent of women and can have short-, medium-, and long-term consequences for both the mother and the child. It remains largely underdiagnosed. Preventing it is a major public health challenge. This requires better training for primary care professionals, both in recognizing symptoms and identifying risk factors. Raising awareness among women and their support networks by providing them with reliable information is also key. Similarly, implementing tools and dedicated time for the systematic screening of PPD is a course of action. Finally, providing personalized support to women identified as being at risk is essential to limit the onset of PPD and to refer them for further care if necessary.