Dr. John Paul Kowalczyk M.D.

What is petechia?The definition of petechia falls under the category of hemorrhaging. A petechia, or more commonly used in Latin plural, petechiae, are microscopically small dots which appear beneath the skin surface in red, brown or purple color. We refer to them in plural because they are barely...

What is a biopsy?A biopsy is a medical procedure, which is mostly used in diagnosing cancer. In this procedure, a small tissue sample is taken from your body for a closer examination under the microscope. A biopsy is usually recommended by your doctor if initial tests in your body suggest an...

Melanoma is a type of lethal skin cancer. Often developing from a mole, it is caused by mutation of the skin cells due to damage in their DNA. These mutations result in a tumor formation within the cells that contain melanin (the pigment that gives skin its color) in the epidermis. The color of a...

Rosacea is a very common skin condition that frequently affects people aged above 30 years. It produces redness on your cheeks, nose, and forehead. Although it commonly affects women, more severe symptoms occur in males. Approximately 16 million people are affected in the United States alone, and it...

What are Comedones?Comedones refer to skin bumps, which are a result of clogged pores. A single bump or lesion is called a comedo. Skin pores can be fully or partially blocked and often lead to the formation of whiteheads and blackheads. Mild acne involves the presence of whiteheads and blackheads,...

There are a lot of vitamin drinks on the market and it is natural to wonder whether these "beauty beverages" are really as healthy as they claim to be. Do they really provide anti-aging solution for your skin? There are more than 300 products on store shelves that claim to benefit your beauty. Are...