Dr. Colin R Trout M.D.

What is nodular melanoma?Nodular melanoma is one of the five subgroups of melanoma. It usually develops in the cells of the skin that produce the pigment called melanin, which gives the skin its color. Approximately 15 percent of melanoma cases are nodular melanoma and is the most aggressive...

Vitiligo is a long-term skin condition in which depigmentation results in white patches on different parts of the body. Some people may have white patches in many areas at the same time. Hair grown on the affected areas may also be decolorized. This skin condition is more common in people with dark...

Biopsies may vary differently depending on the type and location of the tissues and how hard are they to obtain. The medical term used to describe such method is “invasiveness.” A less invasive procedure will, for example, take place in a doctor’s office the same day an abnormal tissue is...

What are freckles?Freckles are flat and circular spots that are beige or brown in color. Their size is usually comparable to the size of the head of a small nail. People who have red hair and a fair complexion often have freckles because of the MC1R variant gene, which is responsible for the...

Heat rash, prickly heat, or miliaria is a condition of the skin that causes rash mostly because of excess sweating. It is a condition that occurs if the sweat ducts cannot efficiently excrete sweat from the body. As a result, sweat accumulates within the skin layers causing a rash that is...

Eczema is the general term of a number of skin conditions. Doctors believe that the condition is passed on genetically and results from a disorder of the immune system. This disorder results in the overreaction of the system when it encounters certain triggers in the environment.Eczema can affect...