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.
There are many reasons why someone may lose their hair. 1. Genetics. As mentioned above, male pattern baldness (MPB) is the most common hair loss condition in men, that occurs when hair recedes from the top and front of a maleâs scalp, creating a horseshoe-like band of hair around the sides of his head.
Other causes of hair loss, especially if it is in an unusual pattern, include: 1  Alopecia areata (bald patches on the scalp, beard, and, possibly, eyebrows; eyelashes may fall out). 2  Anemia. 3  Autoimmune conditions such as lupus. 4  Burns. Certain infectious diseases such as syphilis.  Excessive shampooing and blow- 1 drying. Hormone changes.  Thyroid diseases.