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 list of types of Thyroid disorders mentioned in various sources includes: 1  Hypothyroidism. 2  Hyperthyroidism. 3  Hashimoto's thyroiditis-an autoimmune form of hypothyroidism. 4  Graves' disease-an autoimmune form of hyperthyroidism. 5  Thyroid cancer. 6  Goiter.