What should you know about bruised stretch marks?

New stretch marks, called striae, may be red, purple, brown, or dark pink because stretched skin shows changes in small blood vessels and pigment. They often appear after rapid growth, pregnancy, weight change, or muscle gain. They are different from a bruise caused by an impact, which usually changes colour as it settles and may feel tender. Marks that arise without an obvious skin-stretching trigger, keep spreading, bleed, or occur with easy bruising elsewhere need a clinician’s review. Medicines such as corticosteroids can also affect skin thickness and should be mentioned at an appointment.

Avoid rubbing or scratching the area, use a bland moisturiser for comfort, and protect exposed skin from sun so colour contrast is less noticeable. Do not try to break the skin or treat a suspected bruise with an aggressive product. A dermatologist can confirm the diagnosis and discuss options such as Microneedling, Fractional Laser Treatment, RF Microneedling, or Carboxytherapy. These approaches aim to improve texture or colour over a course of sessions; suitability depends on skin tone, location, pregnancy status, medicines, and the appearance of the marks.

Arrange a prompt assessment if the area is hot, increasingly painful, swollen, infected-looking, or bruises repeatedly without injury. Seek urgent care for extensive unexplained bruising with severe weakness, fainting, bleeding, or breathing difficulty. A non-urgent dermatology visit is sensible when one mark changes quickly, forms a lump, or does not fit the usual pattern of stretch marks.

Ask whether the colour is consistent with a new stretch mark or a bruise, whether any medicine could contribute, and which treatment is appropriate for your skin type. Ask about expected skin reactions, aftercare, sun protection, and how treatment would be paused if you become pregnant.