Stretch Marks Home A-Z Health Information Health Library A-Z Stretch Marks Overview Stretch marks, or striae, are long, narrow streaks or lines that develop due to rapid stretching of the skin. Types Striae rubrae: New, red, or purple stretch marks.Striae albae: Old, white, or silver stretch marks. Symptoms Indented streaks on the abdomen, breasts, hips, buttocks, or other areas. Causes PregnancyRapid weight gain or lossGrowth spurtsCorticosteroid use Diagnosis Physical examination by a dermatologist. Treatment Topical treatments (retinoids)Laser therapy (Harmony XL Pro)Microneedling, or PRP therapy as deemed suitable. Disclaimer: The information in this Health Library is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional with any questions about a medical condition or before starting any treatment. Use of this site and its content does not establish a doctor–patient relationship. In case of a medical emergency, call your local emergency number or visit the nearest emergency facility immediately.