Stretch marks typically appear as bands of parallel lines on your skin. These lines are a different color and texture than your normal skin, and they range from purple to bright pink to light gray. When you touch stretch marks with your fingers, you might feel a slight ridge or indentation on your skin. Sometimes, stretch marks feel itchy or sore.
These lines commonly appear during or after pregnancy or after a sudden change in your weight. They also tend to occur in adolescents who are rapidly growing. Stretch marks aren’t dangerous, and they often disappear over time.
You can have stretch marks just about anywhere, but they’re most common on your stomach, breasts, upper arms, thighs, and buttocks.