Cracked mouth corner: Introduction. Cracked mouth corner: Cracked skin at the corner of the mouth. See detailed information below for a list of 10 causes of Cracked mouth corner, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes.racked mouth corner: Introduction. Cracked mouth corner: Cracked skin at the corner of the mouth. See detailed information below for a list of 10 causes of Cracked mouth corner, Symptom Checker, Assessment Questionnaire, including diseases and drug side effect causes.
Thyroid disorders can range from a small, harmless goiter (enlarged gland) that needs no treatment to life-threatening cancer. The most common thyroid problems involve abnormal production of thyroid hormones. Too much thyroid hormone results in a condition known as hyperthyroidism.
The thyroid is a butterfly-shaped gland in the front of the neck. It produces hormones that control the speed of your metabolism -- the system that helps the body use energy. Thyroid disorders can slow down or rev up metabolism by disrupting the production of thyroid hormones. When hormone levels become too low or too high, you may experience a wide range of symptoms.