There are many reasons for a bulge under the Adam’s apple, including thyroid disease, enlarged lymph nodes, tumors and so on. 1. Thyroid diseases: thyroid tumors, thyroid nodules, hyperthyroidism and other diseases can cause enlargement of the thyroid gland, resulting in a bulge under the Adam’s apple. 2. Enlarged lymph nodes: if there is an infection under the laryngeal node, or if you suffer from pharyngitis, due to inflammation stimulation, causing local lymph node enlargement, which can show a bulge under the laryngeal node. 3. Tumor: lymphoma, or other malignant tumors with lymph node metastasis and enlargement, as well as thyroid tumors, etc., can show the phenomenon of a bulge under the laryngeal node. There are many reasons why there is a bulge underneath the laryngeal node, so it is recommended that the patient should consult a doctor in time, improve the relevant examination, make a clear diagnosis, and give standardized and targeted treatment after the diagnosis is confirmed.