Parathyroid surgery can cause a temporary hyperthyroidism (overactive thyroid). Here is what can happen: during manipulation of the thyroid, which occurs during parathyroid surgery, the thyroid can get irritated. It then starts dumping out too much thyroid hormone. This is called postoperative thyroiditis. It is a self-limiting process, which generally resolves within several weeks. In the firs...

There are two issues that can occur with the thyroid: hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid). Both can occur after parathyroid surgery, but are both uncommon. When we operate on the parathyroids, we are manipulating the thyroid somewhat - we may need to push it over to reach the parathyroids, for example. Most thyroids are fine with that, and most peop...

It is usually nearly impossible to feel parathyroid tumors. Even when large, they tend to be soft and squishy, and don't cause pain. Sometimes, if you have a large and deep adenoma, you can feel something when swallowing, though this rarely causes actual difficulty swallowing.   What you are describing actually sounds more like thyroiditis, or an inflammatory condition of thyroid. The most co...