Hair loss, also known as alopecia, refers to a loss of hair from part of the scalp or body. Typically at least the head is involved. The severity of hair loss can vary from a small area to the entire body. Typically inflammation or scarring is not present. There are numerous causes of hair loss and each diagnosis may have different treatment options. Therefore, it is important to be seen by a Board-Certified Dermatologist to determine the exact cause of your hair loss and discuss possible treatment options.