The repeating monthly cycle in women consisting of ovulation, thickening of the uterine lining to allow for fertilization and (if the egg is not fertilized) the breakdown and discharge of the lining of the uterus during menstruation. Cycle length is measured from the start of one period to the start of the next. The average cycle is 28-29 days, with length variation of up to 7 days being quite normal. Length variation of 8-20 days is considered irregular; variation of 21 days or more is very irregular.
Your body is a highly complex, interconnected system. Instead of guessing at what might be wrong, let us help you discover what is really going on inside your body based on the many clues it is giving.
Our multiple symptom checker provides in-depth health analysis by The Analyst™ with full explanations, recommendations and (optionally) doctors available for case review and answering your specific questions.