"Almost All Of It Is Guesswork": 21 Things Doctors Still Don't Understand About The Human Body
March 21, 2026
4.
“Autoimmune anything. I used to think it was pretty straightforward; then I was diagnosed with a disorder. Everything is so hit-or-miss and open to interpretation, even bloodwork. I went from seropositive to seronegative at one point, how??? Do antibodies, rheumatoid factor, and antinuclear antibody just disappear? Or fluctuate? Depends on the rheumatologist you ask. Symptoms all…





