This web site was developed to help patients, physicians, and PET imaging providers learn how PET imaging is used for various types of disease; primarily in detecting, staging and monitoring cancer, but also in heart disease and brain disorders.
If your period is heavy enough to require changing it more often than every one or two hours, or if you have a period that lasts more than a full week, you may have heavy menstrual periods.n fact, many women begin to experience heavy and/or irregular bleeding in their 30s and 40s. Keep in mind it is common for periods to vary in duration and flow, and normal periods can vary from one woman to the next. But the easiest way to gauge your periods is to ask yourself how often you change your pad or tampon.
1 This shedding causes normal menstrual bleeding. 2  A normal menstrual cycle is 28 days plus or minus 7 days. 3  A menstrual period generally lasts from 2-7 days and has a typical volume of blood and fluid loss of about 2 to 8 tablespoons. A normal menstrual cycle is 28 days plus or minus 7 days. 2  A menstrual period generally lasts from 2-7 days and has a typical volume of blood and fluid loss of about 2 to 8 tablespoons. 3  This corresponds to about eight or fewer soaked pads per day with usually no more than 2 days of heavy bleeding.