What does it mean if you get stretch marks on your arms?

Stretch marks on your arms typically indicate that the skin has undergone rapid stretching, which can occur due to factors such as weight gain, muscle growth, hormonal changes, or pregnancy. They are a common skin condition and are not harmful, though they may be a cosmetic concern for some. The marks often start as red, purple, or dark brown streaks before fading to a lighter color over time. If you're concerned about their appearance, consulting a dermatologist can provide options for management.