Hello
Stretch marks could be due to lot of reason- one of the commonest I excessive weight loss followed by weight Gain. So need to evaluate that history first
Then comes collagen disorders, again ruling them out with proper history and detail is equally important
Stretch marks are usually treated as scar so the management of the same would be lil tricky depends on new/old stretch marks, as approach and results would be different in both cases.
Laser and chemical resurfacing along with topical treatment would help
Next Steps
Consult me via practo pro to know more about your condition and treatment