Dr. Khanh Yen Truong M.D.

What is an abrasion?An abrasion is an open wound caused by the skin coming into contact with a rough surface, rubbing away the upper epidermal layer of the skin. The parts of the body that are more prone to abrasions are thin-skinned bony areas, such as the elbows, knees, ankles, shins, and upper...

Porphyria is an inherited group of disorders that affect the skin and nerves. Porphyria that affects the skin is referred to as cutaneous porphyria, while the condition that affects the nerves is known as acute porphyria. Both types result in the accumulation of the chemical porphyrin in the body....

Wrinkles, or rhytids, are the creases on the skin, which are seen mostly on those parts of the skin exposed to the sun. The face, neck, and arms often have some fine lines or deep burrows, showing the presence of wrinkles. These fine lines are a normal part of aging, but frequent exposure to the sun...

Ingrown hairs look very similar to acne but they are very different. They happen when hair refuses to grow out of the follicles in the normal course. The hair instead curls or winds sideways into its own follicle or into the tissue of the skin creating a host of problems.You find Afro-Americans and...

IntroductionCampbell de Morgan spots are also referred to as red moles, cherry angiomas, or senile angiomas. It has been named after Dr. Campbell Greig de Morgan, a British surgeon who officially started a study on these growths during the 19th century. Campbell de Morgan spots can appear anywhere...

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...