Find out about common parasites and how to protect your pet. Several different types of parasites can make cats and dogs their home. From biting insects like fleas and ticks to internal worms, all of these pests are unpleasant, dangerous, and can cause serious complications.
Although it can feel like a lot more at times, the total amount of blood lost during one period is usually about 60 milliliters (about 2.7 ounces). That's about a third of a small plastic cup. At that rate of bleeding, it takes about 4 hours for a regular tampon or pad to become fully soaked. That is just an average, though: menstrual flow is usually heavier on some days than on others. Doctors consider a woman to have menorrhagia if she regularly loses more than 80 ml of blood during one menstrual period.
And about one year before their first period, many girls experience a marked growth spurt. A girl's first period is usually very light, with sometimes only spotting or very little blood. The typical menstrual cycle is 28 days long, but periods are often irregular during the first few years of menstruation. During this time, girls may skip menstrual cycles, or the cycles may occur multiple times in one month, or less frequently than expected.