Understanding Bruising: Prevention and Management

Last updated: 5 March 2026

Bruising is perhaps the most common concern patients have about aesthetic treatments. Whether it is a small mark after lip filler or more extensive discolouration following an energy-based treatment, understanding why bruising occurs and how to manage it can significantly improve the treatment experience and help set realistic expectations.

The science of bruising

A bruise (ecchymosis) occurs when blood leaks from damaged capillaries or small blood vessels into the surrounding tissue. In aesthetic medicine, this happens when a needle, cannula, or energy device disrupts the walls of blood vessels during treatment. The leaked blood (primarily haemoglobin) undergoes a well-characterised biochemical breakdown process that produces the familiar colour changes.

Bruise colour progression

• Red/dark red (Day 1): Fresh blood containing oxyhaemoglobin
• Blue/purple (Days 1-3): Deoxyhaemoglobin as the blood loses oxygen
• Green (Days 3-5): Biliverdin produced by enzymatic breakdown of haemoglobin
• Yellow/brown (Days 5-10): Bilirubin, the final breakdown product, which is then reabsorbed
• Resolution (Days 7-14+): Complete clearance as all breakdown products are absorbed

Understanding this timeline helps patients plan their treatments appropriately. If you have an important event, I typically recommend scheduling injectable treatments at least 2-3 weeks beforehand to allow any potential bruising to resolve completely.

Why some people bruise more than others

Bruising susceptibility varies enormously between individuals. Research in Clinical, Cosmetic and Investigational Dermatology (2019) identified several key factors:

• Age: Older skin is thinner with more fragile capillaries, leading to easier bruising
• Sex: Women bruise more easily than men due to thinner skin and different subcutaneous fat architecture
• Skin type: Thinner, paler skin makes bruising more visible, though it occurs equally in all skin tones
• Medications: Aspirin, NSAIDs (ibuprofen), anticoagulants (warfarin, DOACs), and some SSRIs increase bruising risk
• Supplements: Fish oil, vitamin E, ginkgo biloba, garlic, and ginger can all thin the blood
• Hormonal status: Post-menopausal women bruise more easily due to oestrogen-related vascular fragility
• Alcohol: Recent alcohol consumption causes vasodilation and may impair platelet function
• Exercise timing: Vigorous exercise immediately before or after treatment increases blood flow and bruising risk

Prevention Strategies

Before Treatment

• Stop blood-thinning supplements (with your doctor’s agreement) 7-10 days before treatment: fish oil, vitamin E, ginkgo, garlic supplements
• Avoid aspirin and ibuprofen for 7 days before treatment (do not stop prescribed medications without medical advice)
• Avoid alcohol for 24-48 hours before treatment
• Avoid strenuous exercise on the day of treatment
• Consider Arnica montana: Taking arnica tablets (30c potency) for 3-5 days before treatment may reduce bruising, though evidence is mixed

During Treatment

Practitioner technique matters in bruising risk:

• Cannula vs needle: Blunt-tipped cannulas cause significantly less bruising than sharp needles, as they push vessels aside rather than piercing them. A study in Dermatologic Surgery (2018) showed a 50-60% reduction in bruising when cannulas were used
• Slow injection speed: Rapid injection creates more tissue disruption
• Anatomical knowledge: Experienced practitioners identify and avoid major vessels
• Ice application: Pre-treatment cooling causes vasoconstriction, reducing blood flow
• Firm pressure: Applying sustained pressure immediately after injection helps seal vessel walls

After Treatment

• Apply pressure: Firm, sustained pressure for 5-10 minutes post-injection
• Ice packs: Apply wrapped ice packs intermittently (10 minutes on, 10 minutes off) for the first few hours
• Avoid heat: No hot baths, saunas, steam rooms, or hot yoga for 24-48 hours
• Avoid strenuous exercise: For 24-48 hours post-treatment
• Sleep elevated: For facial treatments, sleeping with an extra pillow reduces overnight swelling
• Arnica cream or gel: Applied topically to the area (avoiding injection points for 24 hours)

Management: When bruising occurs

Topical Treatments

• Arnica gel or cream: The most commonly recommended topical for bruising, with some clinical evidence supporting faster resolution
• Vitamin K cream: May help speed the breakdown of haemoglobin at the bruise site
• Bromelain: An enzyme from pineapple available as an oral supplement that may reduce bruising severity

Concealment

For patients who need to disguise bruising:

• Colour-correcting concealers: Green/yellow tones neutralise red/purple bruising
• Full-coverage mineral makeup can be applied 24 hours after injectable treatments
• Avoid applying makeup directly to open puncture wounds

LED Light Therapy

Some clinics offer LED light therapy (particularly at 590nm yellow wavelength) to accelerate bruise resolution. Research suggests this can reduce bruise healing time by 30-40%.

When to Be Concerned

Whilst most post-treatment bruising is entirely normal and self-limiting, patients should contact their practitioner if they experience:

• Rapidly expanding bruising with increasing pain
• White or blanched skin (which may indicate vascular occlusion)
• Bruising accompanied by unusual swelling or hardness
• Bruising that shows no improvement after 2 weeks

Frequently asked questions

How long does bruising typically last after injectable treatment?

Most bruising from injectable treatments resolves within 7-14 days. Mild bruising (small red or purple marks) may clear in 5-7 days, while more significant bruising can take up to 2-3 weeks. The lip area tends to bruise more prominently due to the rich blood supply and thin skin.

Can I exercise after filler treatment if I bruise?

It is advisable to avoid strenuous exercise for 24-48 hours after injectable treatments, as increased blood pressure and blood flow can worsen existing bruising. Light walking is generally acceptable. If bruising has occurred, continuing to avoid vigorous exercise for an additional 2-3 days may help it resolve more quickly.

Should I stop taking aspirin before aesthetic treatments?

Never stop prescribed aspirin or any blood-thinning medication without consulting your prescribing doctor. If aspirin is taken by choice (not prescribed), your aesthetic practitioner may recommend stopping it 7 days before treatment. Always disclose all medications during your consultation so your practitioner can advise appropriately and adjust their technique accordingly.

Does bruising mean the treatment has gone wrong?

No. Bruising is a normal and expected potential side effect of any injectable treatment. It occurs because needles and cannulas inevitably encounter small blood vessels in the treatment area. The presence or absence of bruising has no bearing on the effectiveness of the treatment itself.