U2 drummer Larry Mullen Jr. recently revealed that he has been diagnosed with dyscalculia. In an interview with Times Radio, Mullen, 63, shared that he has always known something was off with his numerical abilities but only recently learned the name of his condition.
“Dyscalculia is a sub-version of dyslexia,” Mullen explained. “I can’t count and I can’t add. When people watch me play sometimes, they say, ‘You look pained.’ I am pained because I’m trying to count the bars. Counting bars is like climbing Everest.”
Larry Mullen Jr. is the drummer and a founding member of the iconic rock band U2, which he co-founded in 1976 with Bono, The Edge, and Adam Clayton. Over the years, U2 has become one of the world’s most successful and influential rock bands, known for hits like “With or Without You,” “Sunday Bloody Sunday,” and “One.”

Despite his musical success, Larry has faced personal challenges, including his recent diagnosis with dyscalculia. This learning disorder affects his ability to understand and work with numbers, making tasks like counting bars and keeping time while drumming particularly difficult.
What is Dyscalculia?
Dyscalculia, often referred to as “mathematics learning disability” or “math dyslexia,” affects the area of the brain responsible for math and number-related skills. People with dyscalculia struggle with basic arithmetic, understanding mathematical concepts, and performing calculations. Unlike dyslexia, which affects reading, dyscalculia specifically impacts math abilities.
Symptoms of dyscalculia can vary but often include difficulty with:
- Basic arithmetic (addition, subtraction, multiplication, division)
- Understanding mathematical concepts (fractions, percentages, ratios)
- Performing calculations quickly and accurately
- Remembering mathematical facts and procedures
- Visualizing and manipulating numbers and quantities
Dyscalculia can also co-occur with other learning disabilities such as dyslexia, ADHD, and dysgraphia. It is estimated that between 3% and 7% of the population has dyscalculia, though many cases go undiagnosed.
Mullen’s openness about his diagnosis has brought more awareness to dyscalculia and the challenges it presents. Despite his struggles, he continues to perform with U2, finding ways to work around his difficulties.
