Thank you for asking the question.
This is a common doubt that people get, I’m glad you asked this question.
Firstly let me tell you a little about these stretch marks.
Stretch marks are bands of lines that appear on your body, obviously due to stretching. They can be of any colour ranging from purple to red to a little lighter than your skin colour. When you touch it, it feels sort of like an indentation or ridges.
Stretching of skin happens if you are obese (common cause). Your skin stretches as more and more fat gets accumulated under the skin and hence making your skin tense.
These stretch marks are completely harmless.
You can have stretch marks anywhere on your body, most common sites are your abdomen, chest, upper arm and buttocks.
The main reason for this is, there is something called the adrenals in your body, (these are organs that maintain the steroid levels in your body). These adrenals produce a substance called cortisone, which is a steroid, which helps in maintaining your skin turgor. Once skin gets stretched so much that this cortisone is unable to do its duty. Hence stretch marks appear.
There a lot of things that can cause stretch marks in your body.
Continuous weight gain and weight loss. This is main cause for stretch. So if you are overweight, then your skin is already tense and stretched. Reducing your weight will only make it prominent. But, as i told before, it’ll not harm your body. It’s just a cosmetic problem that many people face.
Since you asked only about the weight loss part, I’ve mentioned only that.
If you have any stretch marks over your body, you don’t have to worry. It’s not problem.
They usually fade away in time.
If you don’t want to wait, there are treatments that can improve the appearance of your skin.. However, no treatment can make stretch marks disappear completely.
There are several ways to improve the appearance of stretch marks:
a. Tretinoin cream (Retin-A, Renova) works by restoring collagen, a fibrous protein that helps give your skin elasticity. It’s best to use this cream on recent stretch marks that are red or pink. This cream may cause skin irritation.
b. Pulsed dye laser therapy encourages the growth of collagen and elastin. It’s best to use this therapy on newer stretch marks. Darker-skinned individuals may experience skin discoloration.
c. Fractional photothermolysis is similar to pulsed dye laser therapy in that it uses a laser. This works by targeting smaller areas of the skin and hence doesn’t damage the skin much.
If you haven’t got these stretch marks then you can use vitamin E oil, it has been proven to show some effect on your skin by maintain the collagen in it.
I hope you got what you were looking for.