Stretch marks on biceps from working out: what to know

Muscle gain, changes in body weight, genetics, and hormonal changes can all influence whether striae develop. Fresh marks may look pink, red, purple, or darker than nearby skin and can feel itchy. Over time they often become lighter, flatter, and less noticeable, although they may remain visible. They are not proof that training has damaged the muscle.

Keep the area moisturised if dryness makes itching worse, and avoid scratching. A steady training and nutrition routine can reduce rapid swings in body size, but no cream can reliably prevent every mark. If appearance bothers you, a dermatologist can assess whether [Microneedling](/treatments/aesthetic-procedures/microneedling/) or [Fractional Laser Treatment](/treatments/laser-and-energy/fractional-laser-treatment/) suits your skin tone and whether the marks are still active. [RF Microneedling](/treatments/laser-and-energy/rf-microneedling/) and [Carboxytherapy](/treatments/aesthetic-procedures/carboxytherapy/) may also be discussed.

Arrange a medical review if marks appear suddenly across several areas, become painful, bruise easily, or occur with unusual weakness or other new symptoms. Seek advice before using steroid creams or supplements marketed for rapid muscle gain, because some medicines and products can affect skin changes.

Ask whether the marks look like stretch marks, which treatment fits their colour and age, what side effects are possible for your skin tone, and how long healing between sessions may take.