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.
This is the stage when a boyâs body starts to become an adult body and differentiate a female adult from an adult man. How long does puberty last for boys? Puberty can last for around 2 to 5 years as it varies from body to body, but this is for sure that the body will grow at a rapid pace during this time frame. How long does puberty last for boys? For boyâs, it is to be said that he has developed his whole body at the age of 19.