This patient support community is for discussions relating to thyroid issues, goiter, Graves disease, Hashimoto's Thyroiditis, Human Growth Hormone (HGH), hyperthyroid, hypothyroid, metabolism, pituitary gland, cancers, thyroiditis, and thyroid Stimulating Hormone (TSH).
Without detailed description of mass from the ultrasound, it is possible to speculate that the small pre-existing thyroid nodule rapidly increased in size due to the intranodular bleeding.