Infection
An infection of the skin that can be caused by bacteria, fungus, viruses or parasites.
Hair
Hair loss, also known as alopecia or baldness, refers to a loss of hair from part of the head or body. Typically at least the head is involved. The severity of hair loss can vary from a small area to the entire body.
Other Conditions
A number of skin conditions last a long time. Some may start in childhood and continue into adulthood. In some cases, the condition will not always be present but will flare up at certain times.