Patients with hypothyroidism are generally not allowed to donate blood. Hypothyroidism is a clinical syndrome caused by insufficient thyroid hormones in the blood circulation, which can be manifested as fatigue, chills, weight gain, etc. Patients with Hashimoto’s hypothyroidism have high levels of thyroid autoantibodies in their blood. Patients with hypothyroidism, such as Hashimoto’s hypothyroidism, have a high concentration of thyroid autoantibodies in their blood, so patients with hypothyroidism usually can’t donate blood. In addition, patients with hypothyroidism due to insufficient thyroid hormones may have hypopoiesis, reduced red blood cell production, which is also inappropriate to donate blood, and the patient may aggravate the symptoms of anemia, which can lead to fainting, shock and other phenomena in severe cases. Patients with hypothyroidism are not allowed to donate blood. For more information, please consult a blood donation doctor.