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Stretch marks on the back

Why stretch marks appear across the back, especially after a growth spurt, whether they fade, and what can reduce their appearance, from Stretch Mark Removal London.

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Back stretch marks, explained

Stretch marks on the back are scars in the dermis, most often across the lower back, left where the skin stretched faster than it could adapt. The NHS lists the back among the common places for them, and the usual reasons are a growth spurt in puberty, weight gain and, for some people, training that builds the back muscles quickly. Stretch Mark Removal London explains why they appear, how much they fade and what treatment can do.

Back marks from a growth spurt often run as horizontal lines across the lower back, in boys as well as girls. They start red, purple or darker than the skin around them and fade to paler lines over a year or two. Because they are behind you, they are the marks people notice least day to day and most in photographs. The guide to reducing the appearance of stretch marks covers every option.

What causes stretch marks on the back?

  • A fast growth spurt during puberty
  • Gaining weight quickly
  • Fast muscle growth from training
  • Some steroid creams or tablets
  • A family member with stretch marks

Stretch marks on the back in teenagers

Horizontal marks across the lower back are common after a fast growth spurt, and they are harmless. They fade over the year or two after growth slows. Treatment is rarely worth considering while growth is still under way, because new marks can keep forming and the existing ones are still improving on their own. The guide to stretch marks in teenagers covers what to expect.

How to reduce stretch marks on the back

Once the marks have stopped changing, microneedling and fractional laser can thicken the thinned skin and soften their edges over a course of three to six sessions. The back is a large area, which raises the cost of a whole-back course, so a practitioner may suggest treating the most visible band first. Camouflage and self-tan can soften pale marks for a holiday while a course runs. Microneedling for stretch marks is offered at UNTIL Soho and laser at UNTIL Marylebone.

When back stretch marks need a GP

Most back marks need no medical attention. The NHS advises seeing a GP if you have large stretch marks together with more fat on the chest and tummy but slim arms and legs, a build-up of fat on the back of the neck and shoulders, or a red, puffy, rounded face, because those can be signs of Cushing's syndrome. Marks with no growth spurt, weight change or training behind them are also worth mentioning to a GP.

Recommended treatments

  • Microneedling for stretch marks Microneedling at UNTIL Soho thickens back marks over three to six sessions, with a lower pigmentation risk on darker skin.
  • Laser stretch mark treatment Fractional laser at UNTIL Marylebone does more per session on established white marks, priced as a large area for the whole back.

FAQ

Back stretch marks
questions answered

Why do teenagers get stretch marks on their back?

Because the skin over the lower back stretches quickly during a growth spurt and tears in the dermis beneath the surface. The marks are harmless and common in boys and girls. Stretch Mark Removal London notes they fade over a year or two after growth slows, so treatment can usually wait.

Do stretch marks on the back fade?

Yes, most fade from red, purple or dark to paler lines over roughly six to twenty-four months, and the mark remains as a faint line. Stretch Mark Removal London suggests photographs taken months apart to judge the change, because it is too slow to notice day to day.

How much does treating stretch marks on the back cost?

The back is priced as a large area. When Stretch Mark Removal London checked in September 2026, one London clinic charged about £900 a laser session for a full back, and microneedling cost less per session. The practitioner quotes for your area in writing before you book.

Get Started

Describe the marks in two lines.
An assessment follows if one is worth having.

Stretch Mark Removal London • UNTIL, 111 Charing Cross Road, London WC2H 0DT

Ask for an Assessment

Send the form and get a response within 1 hour, to book your assessment for today or tomorrow. Say roughly how old the marks are and whether they are still red. UNTIL Health Concierge arranges the assessment at UNTIL Soho or Marylebone.