Polycythemia can result from internal problems with the production of red blood cells. This is termed primary polycythemia. If polycythemia is caused due to another underlying medical problem, it is referred to as secondary polycythemia.
PMS can last 1-2 weeks. Premenstrual syndrome (PMS) is characterized by a number of symptoms related to a womanâs menstrual cycle. They occur a week or two before monthly menstruation begins, and ordinarily, they disappear at that time.
with a sense of humor. When she is not out traveling the world, she is busy writing, doing yoga and performing hip-hop and bhangra. Ways to Shorten a Menstrual Cycle Photo Credit Jupiterimages/Goodshoot/Getty Images. For many women, the menstrual cycle can last anywhere from a week to two weeks each month. This includes both menstruation and the period of time leading up to it, when many women experience symptoms of PMS. Luckily, there are several ways to decrease both the length and painful effects of menstruation and PMS.