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Ask Nurse Lynn: Stretch Marks with Estradiol

Question:

Female, 13 years old, Deletion subtype

My daughter started the estradiol patch about 4 months ago. She hasn’t really gained much weight or gotten bigger, but she is getting stretch marks across her butt and her upper thighs. Is this common with estrogen spikes or does it have something to do with PWS? Is there anything she should or could be putting on them to lessen the severity?

Nurse Lynn’s Response:

It’s common to see stretch marks when starting puberty treatment with estradiol, especially in girls with PWS. This doesn’t always mean your daughter is gaining weight or getting bigger. Estradiol changes how the skin stretches and handles growth, and in PWS the skin is often more delicate because of differences in muscle tone and collagen. Even small changes in her body or hormone levels can cause the skin to stretch and leave marks on areas like the thighs or buttocks.

To help, keep her skin well moisturized with a gentle, fragrance-free lotion or ointment. These won’t make the stretch marks go away, but they will keep her skin soft and more comfortable. Some over-the-counter creams like Mederma Stretch Marks Therapy may help the marks fade a little faster over time. Make sure to protect the areas from the sun, because sunlight can make the marks look darker. If the marks start to bother her or spread quickly, a dermatologist can talk with you about other options, like prescription creams or laser treatments, usually when she’s older.

One more tip: try not to put the estradiol patch on the areas where she already has stretch marks, because that skin can be more sensitive and fragile. Instead, rotate the patch to healthier skin as recommended. Keep an eye on any new changes, like if the marks spread quickly or if you notice swelling or other symptoms and share that with her endocrinologist.

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