Stretch marks (striae) are indented streaks that appear on the abdomen, breasts, hips, buttocks or other places on the body. They're common in pregnant women, especially during the last trimester. Stretch marks aren't painful or harmful, but some people don't like the way they make their skin look.
Stretch marks don't require treatment. They often fade over time, with or without treatment. They may never disappear completely.
Some men and women are prone to develop stretch marks on the upper arms, abdomen, buttocks and thighs. New stretch marks are bright pink, red, blue, black or purple. Older stretch marks fade.
Stretch marks don't all look alike. They vary depending on how long you've had them, what caused them, where they are on your body and the type of skin you have. Common variations include:
See your doctor if you're concerned about the appearance of your skin or if the stretch marks cover large areas of your body. Your doctor can help determine the cause of the stretch marks and discuss treatment options.
Stretch marks are common in pregnant women, especially during the last trimester. They often fade but don't usually disappear.
Stretch marks can cover large areas of the body, but it happens rarely. This can result from corticosteroid medication use or a disease such as Cushing syndrome.
The cause of stretch marks is stretching of the skin. Their severity is affected by several factors, including your genetics and the degree of stress on the skin. Your level of the hormone cortisol also might play a role. Cortisol — a hormone produced by the adrenal glands — weakens elastic fibers in the skin.
Anyone can develop stretch marks, but some factors increase your likelihood of getting them, including:
Stretch marks don't usually need to be diagnosed. Your doctor might examine your skin and review your medical history. If your doctor suspects an increase in your level of the hormone cortisol, you might be offered additional tests.
Stretch marks don't require treatment. They are harmless and often fade over time. Treatment can make them fade, but they may never completely disappear.
The following treatments are among those available to help improve the appearance and texture of stretch marks. None has been proved to be more consistently successful than the others.
Retinoid cream. Derived from vitamin A, retinoids — such as tretinoin (Retin-A, Renova, Avita) — that you apply to your skin may improve the appearance of stretch marks less than a few months old. Tretinoin, when it works, helps to rebuild a protein in the skin called collagen, making the stretch marks look more like your normal skin. Tretinoin can irritate your skin.
If you're pregnant or nursing, talk with your doctor about other treatment options, because possible side effects of retinoid cream may affect the baby.
Work with your doctor to choose the most appropriate treatment or combination of treatments for you. Factors to consider include:
Many creams, ointments and other products claim to prevent or treat stretch marks. Products made of cocoa butter, vitamin E and glycolic acid, for example, aren't harmful, but they probably won't help much either.
Stretch marks usually fade and become less noticeable over time and don't require any specific self-care or home therapy.
The idea that you can prevent or treat stretch marks by rubbing creams, oils or lotions on your skin is not supported by strong evidence.
If you're pregnant, check with your doctor before using alternative products that claim to treat or prevent stretch marks.
If you seek treatment for stretch marks, prepare for your appointment by listing some basic questions to ask your doctor, including:
Your doctor is likely to ask you several questions, such as: