Charlotte Brontë died on March 31, 1855, at the age of 38, but the exact cause of her death remains debated more than 160 years later. Her attending physician listed tuberculosis as the cause, and that was the accepted explanation for decades. More recent medical analyses have proposed alternatives, most notably severe pregnancy-related vomiting, or a combination of tuberculosis and adrenal failure. The truth likely involves more than one factor, and the historical record offers compelling evidence for each theory.
The Official Cause: Tuberculosis
Charlotte’s own doctor attributed her death to tuberculosis, the disease that had already torn through her family. Her brother Branwell died of tuberculosis in September 1848. Emily followed in December of that same year, and Anne died of it in May 1849. All of them had lived together at Haworth Parsonage in Yorkshire, a household where the bacteria spread easily. Charlotte survived six more years before her health collapsed in early 1855.
The tuberculosis explanation carries weight partly because of this family pattern. The Brontës didn’t die from melancholy or the damp Yorkshire weather, as romantic retellings sometimes suggest. They were infected with a highly contagious bacterial disease, and living in close quarters made transmission between siblings nearly inevitable. Charlotte would have been repeatedly exposed over the years, and tuberculosis can remain dormant before reactivating, especially when the body is under stress.
Her Final Months
Charlotte married Arthur Bell Nicholls, her father’s curate, in June 1854. By late that year, she had become pregnant. In January 1855, she fell seriously ill with relentless nausea and vomiting that barely let up for weeks. In her own words, written in a letter during this period: “Let me speak the plain truth. My sufferings are very great. My nights indescribable. Sickness with scarce a reprieve. I strain until what I vomit is mixed with blood.”
The vomiting and inability to eat persisted for roughly two and a half months. She became severely weakened and dehydrated. Then, in the third week of March 1855, her nausea and vomiting suddenly eased. Rather than recovering, though, she declined further and died on March 31. She was 38 years old, and the memorial tablet in the church records her as being “in the 39th year of her age.”
The Pregnancy Complication Theory
The pattern of Charlotte’s symptoms, months of uncontrollable vomiting during early pregnancy followed by a brief reprieve and then death, led many medical historians to conclude she died from hyperemesis gravidarum. This is an extreme form of morning sickness that goes far beyond ordinary nausea. It affects roughly 1 to 2 percent of pregnant women and causes severe dehydration, dangerous drops in essential nutrients, and significant weight loss. Without modern intravenous fluids and nutritional support, it could be fatal.
A 2019 medical paper published in an academic journal proposed a more specific version of this theory. The authors argued that Charlotte likely died from a combination of hyperemesis gravidarum and what’s called refeeding syndrome. This happens when a severely malnourished person begins eating again too quickly. The body’s sudden shift back to processing food can cause fatal imbalances in electrolytes and fluid levels. This would explain the puzzling detail of her illness: why her vomiting stopped in the third week of March, yet she died just days later. The remission of nausea may have allowed her to eat again, triggering a metabolic crisis her body couldn’t survive.
In the 1850s, doctors had almost no understanding of this condition. Medical thinking at the time attributed severe pregnancy vomiting to cervical abnormalities, psychological disturbance, or a woman’s supposed rejection of her own femininity. Effective treatments simply didn’t exist, and midwives who might have had practical experience managing such cases left very little written documentation.
The Tuberculosis and Adrenal Failure Theory
Not everyone accepts the pregnancy explanation. A detailed analysis published in a medical journal cast doubt on whether Charlotte was ever actually pregnant at all, noting that a full review of her final months could be explained entirely by tuberculosis combined with a secondary condition called Addison’s disease.
Addison’s disease occurs when the adrenal glands stop producing enough hormones. One known cause is tuberculosis spreading to the adrenal glands and destroying them. The symptoms of adrenal failure include severe nausea, vomiting, loss of appetite, weakness, and weight loss, which overlap almost perfectly with Charlotte’s reported condition. Under this theory, the tuberculosis she likely carried for years eventually attacked her adrenal glands, producing the prolonged vomiting and wasting that marked her final months.
However, the authors of the 2019 refeeding syndrome paper pushed back on this interpretation. They argued that Addison’s disease doesn’t fit well with the specific pattern of two and a half months of severe nausea and vomiting followed by a clear remission of those symptoms before death. Adrenal failure tends to produce a more steady decline rather than the stop-and-crash pattern Charlotte experienced.
Why the Debate Persists
The challenge with diagnosing a death from 1855 is that the tools simply weren’t available to distinguish between these possibilities. No blood tests were run. No imaging was done. The medical notes from Charlotte’s doctor were brief by modern standards, and much of what we know comes from her own letters and from Elizabeth Gaskell’s biography, published two years after Charlotte’s death.
What is clear is that multiple factors were likely at work. Charlotte had spent years in a household riddled with tuberculosis. She became pregnant at 38, which in the 1850s carried significant risks even without complications. She endured months of vomiting so severe it produced blood, leaving her profoundly malnourished. And she lived in an era when none of these conditions could be properly diagnosed or treated. Whether the final blow came from pregnancy complications, refeeding after starvation, tuberculosis destroying her adrenal glands, or some combination, her body had been under siege from multiple directions for months.
The most widely cited modern explanation is that hyperemesis gravidarum, possibly compounded by refeeding syndrome, was the immediate cause of death in a woman whose health was already compromised by long-term exposure to tuberculosis. Her death certificate says tuberculosis. Her symptoms say it was almost certainly more complicated than that.