Tampons sizes are based on their absorbency, or the amount of menstrual flow they will comfortably absorb. The United States Food and Drug Administration regulates the sizes used by tampon manufacturers, called ratings, to ensure that all brands at the same rating have the same absorption capacity. The FDA developed five ratings for tampons: light, regular, super, super plus and ultra.Know More
Light absorbency tampons absorb 6 grams of blood or less, and are best suited for times when menstrual flow is the lightest. Generally this would be at the beginning or end of the cycle. Regular tampons absorb 6-9 grams. This is usually a high enough rating for most of the cycle. Super tampons hold 9-12 grams, for times when the menstrual flow is heavier than usual. Super plus tampons absorb 12-15 grams of blood, used for extra heavy bleeding. Ultra tampons absorb 15-18 grams; this is higher than most women need.
While tampons that absorb more than 18 grams are available, there is no FDA rating for them.
Tampons should never be worn for longer than eight hours at a time, due to the increased risk of toxic shock syndrome. Using the lowest rating possible helps reduce the risk.Learn more about Menstruation
Breakthrough bleeding is characterized by very light bleeding between periods that does not require a tampon or sanitary napkin and is usually red or reddish-brown in color. It is also referred to as "spotting," according to Wikipedia.Full Answer >
Selecting the right catheter size is typically based on the quality of the patient's urine, as PatientPlus indicates that cloudier, grittier or bloodier urine requires larger catheters. As a general rule of thumb, always use the smallest catheter size that still allows for proper drainage. Gender and the age of the patient are also factors to be considered when choosing the right catheter size.Full Answer >
The absorbency of a material to different light wavelengths determines its color. Absorbed colors are absent from the transmitted and reflected spectra. The more a certain wavelength is absorbed, the less of it appears in the transmitted light.Full Answer >
Healthline identifies several factors that cause spotting between periods, including hormonal imbalances, pregnancy complications, uterine fibroids or polyps, infection, and the presence of an intrauterine device. Due to the number of possible causes for abnormal vaginal bleeding, it is best to seek medical advice to determine its cause.Full Answer >