Stretch marks are irregular areas of skin that look like bands, stripes, or lines. Stretch marks are seen when a person grows or gains weight rapidly or has certain diseases or conditions.
The medical name for stretch marks is striae.
Striae; Striae atrophica; Striae distensae
Stretch marks can appear when there is rapid stretching of the skin. They are often seen when a woman's abdomen gets larger during pregnancy. They can be found in children who have become rapidly obese. They may also occur during the rapid growth of puberty in males and females. Striae are most commonly located on the breasts, hips, thighs, buttocks, abdomen, and flank.
Stretch marks appear as parallel streaks of red, thinned, glossy skin that over time become whitish and scar-like in appearance. The stretch marks may be slightly depressed and have a different texture than normal skin.
Stretch marks may also occur as a result of abnormal collagen formation, or a result of medicines or chemicals that interfere with collagen formation. They may also be associated with longtime use of cortisone compounds, diabetes, Cushing disease, and post-pregnancy.
Causes may include any of the following:
There is no specific care for stretch marks. Marks often disappear after the cause of the skin stretching is gone.
Avoiding rapid weight gain helps reduce stretch marks caused by obesity.
When to Contact a Medical Professional
If stretch marks appear without clear cause, such as pregnancy or rapid weight gain, call your health care provider.
What to Expect at Your Office Visit
Your provider will examine you and ask about your symptoms, including:
- Is this the first time that you have developed stretch marks?
- When did you first notice the stretch marks?
- What medicines have you taken?
- Have you used a cortisone skin cream?
- What other symptoms do you have?
If the stretch marks are not caused by normal physical changes, tests may be done. A retinoid cream can be prescribed and may help reduce stretch marks. Laser treatment may also help. In very rare cases, surgery may be done.
Emer JJ, Khorasani H. Striae. In: Lebwohl MG, Heymann WR, Berth-Jones J, Coulson I, eds. Treatment of Skin Disease: Comprehensive Therapeutic Strategies. 4th ed. Philadelphia, PA: Elsevier Saunders; 2014:chap 226.