PPD does not have a single identifiable cause but is believed to arise from a combination of physical and emotional factors. It is essential to understand that PPD does not occur due to something a mother does or does not do. After childbirth, the rapid drop in hormone levels (estrogen and progesterone) can lead to chemical changes in the brain, potentially triggering mood swings and emotional fluctuations.   The challenges new moms face in obtaining sufficient rest after giving birth can also contribute to the development of PPD. Sleep deprivation frequently leads to bodily discomfort and extreme fatigue, which can worsen the symptoms of postpartum depression.   All pregnant women are at risk for PPD, regardless of age, race, ethnicity, or economic status. However, some individuals may have a higher likelihood of developing it. Women with a personal or family history of depression or prior experience with postpartum depression are at increased risk.   Additionally, the experience of external stressful life events during pregnancy or shortly after giving birth are capable of contributing to the onset of PPD. Other risk factors include medical complications during childbirth, mixed feelings about the pregnancy (whether planned or unplanned), a lack of strong emotional support from loved ones, and alcohol or drug abuse problems.