If the thyroid gland is removed in its entirety, there is a risk of damage to the parathyroid glands, which manage calcium metabolism, and if there is a lack of calcium there will be numbness in the hands, twitching in the hands, and in more severe cases, cramps in the hands and feet. Like this, the patient is given a blood calcium check. Parathyroid hormone levels, if the blood calcium is very low should be supplemented with calcium, of course, but also supplement some vitamin D. In addition, the total removal of the thyroid gland numbness of the hands and feet, may be due to the local blood supply is insufficient or complications caused by the usual dietary supplements to alleviate the method.