01/19/2026
“My Endocrinologist says I have primary hyperparathyroidism, but he wants to watch it and not refer me for surgery. Why is that?”
The history of parathyroid surgery is pretty interesting. It started over a century ago, long before we had the advanced testing we use today. Back then, there was no way to measure parathyroid hormone (PTH) levels—only serum calcium could be tested. Patients often showed up with severe bone disease or kidney stones. Without a PTH test, doctors had to rule out every other possible cause of high calcium before suspecting a parathyroid problem. Endocrinologists became the go-to specialists for sorting through all those possibilities. Only when every other cause was eliminated would they conclude an overactive parathyroid gland was to blame, and that’s when a surgeon got involved.
Fast forward to today, and things are much simpler. We have a quick blood test to check intact PTH levels. If you have four normal parathyroid glands, they won’t overproduce PTH just because your calcium is high for another reason. Now, the first step when calcium is elevated is to check PTH. If it’s not suppressed, the diagnosis of primary hyperparathyroidism can be made right away. In fact, if you’re generally healthy and your calcium is consistently high, chances are good that’s the issue—so it’s smart to check this first.
Still, many primary care doctors send patients with high calcium to an endocrinologist, and some endocrinologists keep running through all the old possible causes even when it’s unnecessary if the PTH is already too high. They might diagnose primary hyperparathyroidism but downplay it, telling the patient, “It’s not that bad, let's just follow it”.
This likely comes from a time when parathyroid surgery wasn’t as safe or routine as it is today in skilled hands. They may not realize how symptomatic these patients can be, even when calcium and PTH levels aren’t “that high.” The truth is, parathyroid surgery is highly effective and very safe when performed by experienced surgeons. Most people with primary hyperparathyroidism have symptoms that can improve, often significantly, after a straightforward operation.
Maybe your endocrinologist ordered scans to locate an abnormal parathyroid gland, but they came back negative. So, what happens next? Stay tuned.