[Tweet url here and here: Hat Tip to Kelly Loomis!]
Rowling had the above twixter conversation with journalist and friend Janet Murray (no known relation to husband Neil Murray) about both women’s struggles to maintain iron levels in their blood. Rowling mentions as an aside her being “diagnosed with von Willebrand’s disease” (VWD) by a haemotologist. VWD is “the most common hereditary coagulopathy in humans, affecting 1% of the population” per Wikipedia.
This was not a revelation, though her discussion of her daily concern with absorbing iron certainly was (imagine writing the haemotologist Roy Phipps scenes in Troubled Blood while surviving on a diet of 90% kale…). She had tweeted about being “born with a bleeding disorder” in December 2025 and Nick Jeffery noted at the time that it was probably VWD because of its prevalence in the population and its appearance in Strike 5. Rowling’s 9/11 tweet confirmed Nick’s Best Guess.
Nick went on from his first post to catalogue in his ‘The Troubled Blood of J. K. Rowling‘ the Blood Golden Thread’s appearances and meaning throughout Rowling’s work. That brilliant exposition was followed up by a Rowling Studies conversation on the same subject, ‘Blood: The Crimson Thread.’ If you were unaware of that strand or commonplace in nearly everything Rowling has written, it’s a fascinating study in the intersection of Rowling’s biographical Lake inspiration and her Shed artistry by which she elevates blood to a social, psychological, and spiritual metaphor.
I confess, though, I’m most interested in Rowling’s ideas about blood because of a twitter header she posted when writing Troubled Blood: [Read more…]













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