what can cause periods to delay

Late periods can be caused by a variety of factors, including stress, low body weight, obesity, polycystic ovary syndrome (PCOS), birth control, chronic diseases, hormone imbalances, medications, thyroid issues, premature menopause, uterine scarring, poor sleep, vigorous exercise, traveling across time zones, and weight changes. If you are experiencing irregular periods, it is advisable to consult a healthcare professional to determine the underlying cause and appropriate treatment.