Stretch marks appear when the skin's supporting fibers change during periods of stretching and body change. In pregnancy, they can appear on the belly, breasts, hips and thighs. Individual predisposition, hormonal changes and the way the skin responds to growth all play a part — so having stretch marks is not a sign of neglect.
At first, they may be pink, reddish or purplish and, over time, they usually become lighter. How noticeable they are varies a lot from person to person, and even between pregnancies in the same person.
What moisturizers can do — and what they don't promise
Moisturizing your skin can relieve dryness, tightness and mild itching. It can be part of a comforting routine, but it is no guarantee that stretch marks won't appear. A Cochrane review found no high-quality evidence that the creams, lotions or oils tested prevent stretch marks during pregnancy.
Expensive products, ads promising complete results and before-and-after photos don't change this uncertainty. Choose simple formulas, stop if there is irritation and talk to your care team before using active ingredients or starting dermatological treatment during pregnancy.
Care without guilt
Keeping track of weight gain during prenatal care is important for the health of the pregnancy, but it shouldn't become an attempt to prevent any change in your skin. Avoid restrictive diets or weight goals set without an individual assessment. Comfortable clothes, showers that aren't too hot and moisturizing after bathing can help with everyday comfort.
If stretch marks bother you after pregnancy, a dermatologist can explain the options, limits, the right timing and compatibility with breastfeeding. Results vary, and no approach needs to be treated as a cosmetic obligation.
When a skin change needs to be checked
Intense itching, especially without visible lesions or involving the palms of the hands and soles of the feet, yellowish skin or eyes, blisters, pain, discharge or a spreading rash should not automatically be put down to stretch marks. Let your prenatal care team know so they can assess it.