Complications during childbirth can arise from a variety of factors, including maternal health issues such as hypertension, diabetes, and infections. Other causes include fetal distress, prolonged labor, or abnormal fetal positioning, which may lead to complications such as shoulder dystocia or umbilical cord prolapse. Additionally, factors such as advanced maternal age, multiple pregnancies (twins or more), and the presence of uterine abnormalities can contribute to increased risks of complications during delivery.