A period happens on average every 28 days for females when an unfertilized egg passes through the body and the uterine lining sheds as blood. The period is the end of the menstrual cycle, and a new egg will be released soon after the bleeding stops. Notice that the cycle is an average of 28 days. For some women this could be more or less, and in some cases you could have both. Your period should fluctuate on its punctuation during puberty and menopause, but in between these time periods it should be predictable, and occur once a month. Deviations from this rule of thumb can be an indicator of a health concern.
Your period existence is a result of hormones, so when these become over or underactive, you can develop health problems. Amenorrhea is defined as the absence of a period for at least three consecutive months. Though, the absence of a period is not the only menstrual cycle-related problem you can have. You should always keep track of your cycle and watch to make sure you are getting it once every 21 to 35 days. A period outside of this window of time is considered abnormal and should be identified.
