Canker sores (aphthous ulcers or aphthous stomatitis) are small, painful ulcers inside the mouth. They may occur on the tongue and on the inside linings of the cheeks, lips, and throat.They usually appear white, gray, or yellow in color, with a red border.anker sores (aphthous ulcers or aphthous stomatitis) are small, painful ulcers inside the mouth. They may occur on the tongue and on the inside linings of the cheeks, lips, and throat.
Vigorous styling and hair treatments over the years can cause your hair to fall out. Examples of extreme styling include tight braids, hair weaves or corn rows as well as chemical relaxers to straighten your hair, hot-oil treatments or any kind of harsh chemical or high heat.
Common Causes of Thinning Hair. 1  Thyroid Disease â Both high thyroid and low thyroid conditions can lead to falling hair. 2  Lupus â One of the earliest signs of this autoimmune disease is hair loss. 3  Anemia â Anemia is another reason hair falls out.  Diabetes â Like lupus, one of the earliest signs of this metabolic disorder is hair loss.