One Swollen Neck Gland?

A swollen gland can indicate an infection from bacteria or a virus. Autoimmune conditions, thyroid issues and cancer can also cause lymph glands to become enlarged. If it has grown rapidly or continues to increase in size, see your doctor for further evaluation. Also call your doctor if you have a fever, redness or swelling at the gland site or do not see an improvement with the size within a few days.