Abdominal stretch marks
Abdominal stretch marks, or striae, are linear dermal changes that form as skin stretches and remodels. New marks may be red, purple or dark before becoming paler and more indented. They are common after pregnancy, growth or weight change.
What you may notice
- Red, purple, brown or pink linear marks
- Paler, slightly indented mature lines
- Parallel marks across the abdomen
- Mild itch during early development
Why it can happen
Rapid stretching and hormonal effects alter collagen and elastic tissue. Pregnancy, puberty, weight change, muscle growth and corticosteroid exposure can contribute. Genetics affects susceptibility. Rarely, unusually wide marks with other symptoms occur with Cushing syndrome or prolonged strong steroid use.
What may help
Stretch marks usually fade but do not disappear completely. Moisturisers may relieve itch but have limited prevention evidence. Selected topical medicines may help early marks but are unsuitable in pregnancy. Vascular or fractional lasers and microneedling may improve colour or texture, with mixed evidence and pigment risk.
When to consult
Seek medical advice if marks appear suddenly without an obvious reason, are unusually wide, or occur with weakness, easy bruising or steroid use. Cosmetic consultation should set expectations for partial improvement.
Evidence and sources
- National Health Service. Stretch marks [Internet]. London: National Health Service; 2023 [cited 2026 Nov 7]. Available from: https://www.nhs.uk/conditions/stretch-marks/ (new tab)
- DermNet. Stretch marks (striae) [Internet]. Auckland: DermNet; 2003 [cited 2026 Nov 7]. Available from: https://dermnetnz.org/topics/stretch-marks-striae (new tab)
- Zhu CK, Mija LA, Koulmi K, et al. A systematic review on treatment outcomes of striae. Dermatol Surg. 2024;50(6):546-552. doi: 10.1097/DSS.0000000000004151. (new tab)