Michael S. Fisher, Ph.D., M.D.
|published over 50 articles on the subject.|
A comedo is a clogged hair follicle (pore) in the skin. Keratin (skin debris) combines with oil to block the follicle. A comedo can be open (blackhead) or closed by skin (whitehead), and occur with or
The dark dot appears to be a small blood vessel called an angiostatin which is benign. The two brown spots are not irregular in color and they are most likely post inflammatory hyperpigmentation. This
Chapped lips (also cheilitis simplex or common cheilitis)are characterized by cracking, fissuring, and peeling of the skin of the lips, and are one of the most common types of cheilitis. While both lips
Possible causes of anal itching include: Personal care habits. Your skin care routine may include products or behaviors that irritate the skin. These include washing too much, washing too little, and
Lichen nitidus (LIE-kun ni-TIE-dus) is a rare skin condition that usually appears as tiny, skin-colored, glistening bumps on the surface of your skin. Lichen nitidus results from abnormal inflammatory