Everything we have written about measuring menstrual blood loss — what the numbers mean, and where they come from.
Add up your PBAC score and read what it means — a worked example and an interpretation table for every range, including well over 100.
The Pictorial Blood Loss Assessment Chart: a printable day 1–8 tally sheet with the point values, how scoring works, and how each chart defines a large clot.
Same arithmetic, different failure modes. Which one you should use depends on how you actually behave during a period — not on which is more modern.
What separates a normal period from a heavy one (the 80 ml threshold), and how PeriodVol turns what you used into millilitres.
Cup capacity is the one number on your period that is already measured for you — if you know how to read it.
How a logged pad, tampon or cup becomes a millilitre estimate — the per-product tables, the research behind the 80 ml threshold, and the known limits.