Why Do Periods Come Late? | Causes of Irregular Menstrual Cycle Explained Late or irregular periods can be confusing and worrying. In this short video, we explain the most common reasons why periods come late — from hormonal imbalance, stress, and lifestyle factors to medical conditions like PCOS and thyroid problems. Understanding your cycle is the first step to better reproductive health. 👉 If your periods are frequently delayed, always consult a doctor for proper advice. 🔔 Subscribe to Anat