Is it safe to get a vaccine shot if you have steel in your waist?
Generally, having a metal plate in the waist does not affect vaccination. However, if recovery after surgery is poor or accompanied by acute discomfort, vaccination should be postponed. If in doubt, it is recommended to consult a doctor in advance. The detailed analysis is as follows:

Metal plates are considered internal implants with stable materials that do not react with vaccine components, nor do they interfere with the immune system's response to vaccines. As long as recovery from lumbar surgery is progressing well—without pain, infection, swelling, or other abnormalities—and overall health meets the required standards, vaccination can proceed normally. Simply ensure the injection site avoids the surgical area on the lower back.
If the time since surgery is short and the wound has not fully healed, or if there are signs of poor recovery such as infection, redness, swelling, severe pain, or systemic symptoms like fever and fatigue, vaccination may worsen local symptoms and make it difficult to identify the cause of any adverse reactions. In such cases, it is advisable to first focus on recovery and wait until your condition stabilizes before getting vaccinated.
Prior to vaccination, you should proactively inform the healthcare provider about the presence of the metal implant and your current recovery status so they can assess whether vaccination is appropriate. After vaccination, remain under observation as instructed, keep the injection site clean, and promptly report any persistent discomfort.