A course of steroid pills lasting two weeks or less was linked to higher risks of gastrointestinal bleeding, pneumonia and heart failure in the month after starting, in a study of 36,048 adults with type 2 diabetes published in JAMA Network Open. The typical course lasted just 3 days.
If you have type 2 diabetes and are offered a short steroid course for back pain, a rash or a cough, this finding does not mean you should refuse one your doctor thinks you need. It does give you two fair questions to ask: is this really needed, and what should I watch for in the next month? The warning signs that match these risks are black or tarry stools, fever with a worsening cough, and new shortness of breath or swelling in the legs.
Much type 2 diabetes starts with daily habits, and whether short sleep and a poor diet together raise the odds of getting it is a question one large study answered.
Key takeaways
- In adults with type 2 diabetes, pneumonia risk roughly doubled in days 6 to 30 after starting a short steroid course.
- Gastrointestinal bleeding and heart failure were also more likely in that window; bleeding and fractures stayed elevated out to 90 days.
- The study shows a link, not proof, and the illness that led to the steroids may explain part of the pneumonia signal.
What the study found
Researchers used Taiwan’s National Health Insurance Research Database from January 1, 2008, through December 31, 2022. They studied 36,048 adults with type 2 diabetes, average age 61.6. A “burst” meant oral steroids taken for 14 days or less. The median course was 3 days at a median of 12 mg a day.
The design compared each person with themselves, on steroids versus off them. That removes fixed differences between people, such as genetics.
In days 6 to 30 after starting, according to the study:
- Pneumonia: about 106% higher risk, roughly double (incidence rate ratio 2.06). The true increase is very likely between 65% and 157% (95% CI 1.65 to 2.57).
- Heart failure: about 87% higher risk (IRR 1.87), very likely between 27% and 177% higher (95% CI 1.27 to 2.77).
- Gastrointestinal bleeding: about 71% higher risk (IRR 1.71), very likely between 52% and 94% higher (95% CI 1.52 to 1.94).
From day 31 to day 90, two risks stayed up: gastrointestinal bleeding was about 26% higher (IRR 1.26, very likely 14% to 38% higher) and fracture was about 42% higher (IRR 1.42, very likely 21% to 68% higher).
Dr. Kumar’s take
Short steroid courses are handed out all the time for back pain and sciatica, where the evidence that they help is thin. That is where this study matters most. When the benefit is small or uncertain, even a modest rise in bleeding or heart failure risk tips the balance.
The main caveat is the pneumonia number. People are often given steroids because they are already sick, for example with a chest infection or a bad cough. Some of those early pneumonia cases may come from the infection that was already brewing, not from the steroid. The authors themselves say hidden factors they could not measure “cannot be completely excluded.” The bleeding and heart failure signals are harder to pin on a chest infection.
This is also not a new alarm. A 2020 nationwide study from Taiwan, published in the Annals of Internal Medicine, had already tied steroid bursts to serious side effects. The new study repeats that pattern in an older group with diabetes, whose baseline risks for infection, heart events and fracture are already higher.
What it means for you
- If a steroid course is offered for back pain, sciatica or a mild rash, ask what it is expected to do and whether there is another option. For back pain, non-drug routes exist, and a recent trial tested whether a simple lumbar belt could cut pain pill use.
- If you do take one, watch closely for the first month. Black or tarry stools, vomiting blood, fever with a worsening cough, new shortness of breath, or swollen ankles are reasons to call your doctor promptly.
- Some conditions clearly justify steroids. This study does not say to refuse them or to stop a course early on your own. That decision belongs with your doctor.