Dr. Randall K Roenigk M.D.

Stretch marks are pink or purple streaks that appear on the skin, especially in the abdomen, thighs, upper arms, and back. This is very common in pregnant women, but may also be seen in people who gain weight, or a sudden growth during puberty. The color of the marks may gradually fade to white or...

Melanoma is a type of skin cancer which affects the melanocytes of the skin, which give skin its color. It is a malignant tumor and may develop from an existing mole or as a new mole. It being malignant means that it is a dangerous condition and can lead to death. The common sites they affect are...

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...

Hair growth can sometimes be excessive due to medical conditions or genetic predisposition. Laser hair removal is a permanent way of getting rid of or reducing hair. The procedure is used for removing hair on the arms, legs, genital area, back, chest, face, neck, etc. Are you considering laser...

There are a number of different factors that affect someone's skin, whether it be the person's overall health, their genes, their age, or even the cold temperature outside. But, having it can be a little embarrassing. While hydrating and replenishing the lost moisture are vital steps in keeping the...

Sometimes hair avoids its normal growth path, curls tightly and digs deeper into the skin, piercing its own follicle or surrounding tissue.  It is usually brought on by incorrect shaving techniques and forceful removal of hair on faces, armpits, genital area and legs. The hair grows into the skin...