Thailand Medical Study Finds High Blood Pressure May Keep Nosebleeds Going Longer
Nikhil Prasad Fact checked by:Thailand Medical News Team Jul 19, 2026 7 hours, 45 minutes ago
Thailand Medical News: Nosebleeds are common and usually stop on their own, but for some people they can continue for much longer than expected. Now, a new Thailand Medical Study has found that patients arriving at the emergency department with higher systolic blood pressure are more likely to experience a longer wait before their nosebleed stops. The findings could help doctors quickly identify patients who may need more time and closer monitoring during treatment.
A Thailand Medical Study found that patients arriving at emergency departments with higher systolic blood pressure
experienced significantly longer times before their nosebleeds stopped
The research was conducted by
Thailand Medical scientists from the Department of Emergency Medicine, Faculty of Medicine, Chiang Mai University, and the Acute Care and Emergency Medicine (ACE) Research Cluster, Faculty of Medicine, Chiang Mai University, Thailand.
A Decade of Emergency Department Data
The researchers reviewed medical records from 482 adults who visited the emergency department at Maharaj Nakorn Chiang Mai Hospital between 2015 and 2025 with non-traumatic nosebleeds. Patients whose bleeding resulted from injuries were excluded.
Among the participants, 310 patients (64.3%) arrived with a systolic blood pressure of 140 mmHg or higher, while 172 patients had readings below that level. The scientists then examined how long it took before doctors documented that the bleeding had stopped.
High Blood Pressure Linked to Slower Bleeding Control
One of the clearest findings was the difference in the time needed to stop the bleeding. Patients with elevated systolic blood pressure had a median bleeding control time of 39 minutes, compared to only 23 minutes in those with lower blood pressure.
Even after adjusting for age, existing medical conditions, medications, and treatments provided in the emergency department, elevated systolic blood pressure remained an independent predictor of delayed bleeding control. Patients with higher blood pressure were about 29% less likely to achieve documented bleeding cessation at any given point during treatment compared to those with lower readings.
The researchers also noticed a possible trend. People with extremely high systolic blood pressure, especially 180 mmHg or higher, appeared to have an even greater delay before bleeding stopped, suggesting the relationship may become stronger as blood pressure rises.
What Else Influenced Recovery?
Interestingly, not every treatment produced the same results.
Patients who required mechanical nasal packing, where doctors place material inside the nose to compress bleeding vessels, generally took longer to achieve bleeding control. However, the researchers believe this probably reflects the fact that these patients already had more severe nosebleeds rather than the treatment itself causing delays.
On the other hand, electrical cauterization, which seals b
leeding blood vessels using heat, was associated with much faster bleeding control. Although only a small number of patients underwent this procedure, the findings suggest it can be highly effective when doctors can clearly identify the bleeding source.
Surprisingly, underlying hypertension, blood-thinning medications, and several other medical conditions were not independently linked with slower bleeding once other factors were taken into account.
Why Blood Pressure May Matter
This Medical News report highlights that doctors believe elevated blood pressure during a nosebleed may not necessarily be the direct cause of prolonged bleeding.
Instead, higher blood pressure could simply reflect the body's response to pain, anxiety, stress, or more severe bleeding. Increased pressure inside blood vessels may also make it harder for blood clots to stabilize, although this theory still requires further investigation.
Importantly, the researchers stressed that their findings do not mean doctors should immediately lower a patient's blood pressure simply to stop a nosebleed. There is currently no evidence that emergency blood pressure treatment speeds bleeding control, and unnecessary blood pressure reduction could potentially create additional risks.
A Useful Tool for Emergency Doctors
Because blood pressure is measured immediately when patients arrive at the emergency department, it may provide healthcare professionals with a simple way to identify individuals who are likely to require longer observation and treatment.
The study also found that more than 92% of patients eventually achieved successful bleeding control before leaving the emergency department, showing that most cases can still be managed successfully despite temporary delays.
Conclusion
The findings suggest that a higher systolic blood pressure at emergency department arrival serves as an important early warning sign that a patient with a non-traumatic nosebleed may require a longer period before bleeding is brought under control. While elevated blood pressure should not be viewed as the direct cause of prolonged bleeding or as a target for emergency blood pressure-lowering therapy, it may help clinicians anticipate which patients need closer monitoring, additional resources, and extended care. Larger prospective studies will be needed to determine whether these observations hold true across different hospitals and patient populations.
The study findings were published in the peer reviewed journal: Journal of Clinical Medicine.
https://www.mdpi.com/2077-0383/15/14/5535
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