People who have had shingles are at a higher risk of having a stroke in the first month after the infection, with this risk gradually decreasing over the next few months and returning to normal levels after one year.

We analyzed the available evidence and found that people who have had shingles may face a higher risk of ischemic stroke in the first month after the infection, with this risk slowly lowering over the following months and returning to baseline after about a year [1]. This pattern was observed across all the studies we reviewed, with no evidence suggesting the opposite. The increase in stroke risk appears to be strongest right after the shingles outbreak, which could be linked to the body’s inflammatory response during active viral reactivation. As the infection resolves, this heightened risk fades, suggesting the connection is temporary rather than long-term. We did not find any data showing that shingles causes permanent changes to blood vessels or clotting systems that would explain a lasting stroke risk. What we’ve found so far points to a short-term association between shingles and stroke, particularly in the earliest weeks after symptoms appear. There is no indication that everyone who gets shingles will have a stroke, nor that the risk remains elevated beyond one year. The evidence does not clarify whether age, vaccination status, or other health conditions affect this pattern, as those details were not included in the studies we reviewed. If you’ve recently had shingles, it may be helpful to pay attention to stroke warning signs—like sudden numbness, confusion, or trouble speaking—and to follow up with your doctor, especially in the first few weeks after the outbreak.