How does mesotherapy work?

Mesotherapy uses fine needles to inject small quantities of substances, such as vitamins, minerals or hyaluronic acid, into or beneath the skin, typically targeting the dermis, the skin's middle layer. Depending on the purpose of the procedure, these substances may include vitamins, minerals, amino acids, hyaluronic acid or other ingredients.

Clinics may offer mesotherapy for facial rejuvenation, improving the appearance of cellulite, skin hydration or localised fat reduction. It may also be promoted as a non surgical procedure for concerns such as acne scars, active acne, hair loss, hair regeneration, weight loss, sports injuries or chronic pain, depending on the clinic and the products used.

During the treatment process, injections are usually placed into the desired area of the face, scalp or body. Where mesotherapy is used for hair growth concerns, the aim may be to target the scalp and hair follicles. Because mesotherapy is not one standardised treatment, the products used, injection technique, needle depth and number of mesotherapy sessions can differ from one provider to another.

What are the common side effects and risks of mesotherapy?

It is important to distinguish common side effects from an avoidable injury. Mesotherapy involves multiple injections, so some reaction around the treatment area and injection sites can be expected.

Common side effects can include:

• Mild pain or tenderness
• Redness
• Mild swelling
• Bruising around injection sites
• Temporary inflammation

Patients may also experience allergic reactions to one or more substances used during mesotherapy treatment. Before treatment, the practitioner should consider relevant allergies, medications and medical conditions when assessing whether the procedure is suitable.

These effects do not automatically mean that mesotherapy injections have gone wrong. Their severity, duration and the wider clinical circumstances matter. Bruising, redness and mild swelling that settle as expected are different from symptoms that worsen, persist or indicate a more serious complication.

Equally, describing something as a known risk does not automatically prevent a compensation claim. Questions may still arise about whether the patient was properly advised about material risks, whether the treatment was suitable for them and whether reasonable steps were taken to reduce and manage those risks.

What can mesotherapy gone wrong look like?

A poor outcome does not always mean there has been negligence. However, symptoms that are severe, worsening or lasting longer than expected should not simply be dismissed as part of the normal recovery process.

Possible problems after mesotherapy treatment can include infection, persistent nodules or lumps, allergic reactions, changes in pigmentation, scarring and other forms of skin or tissue damage.

Infection

Any mesotherapy procedure involving injections creates openings in the skin through which bacteria may potentially enter. Published research has documented infections following mesotherapy, including infections that have led to persistent lesions and subsequent scarring.

Signs that may suggest an infection include increasing pain, heat, swelling, discharge or redness spreading beyond the treatment area. The NHS guidance on skin abscesses advises seeking urgent medical help for a lump that is painful, red or hot, or where redness or swelling is spreading.

An infection after mesotherapy does not by itself prove that treatment was negligent. A claim may become possible where evidence indicates that contaminated equipment, unsafe injection practices or an inadequate response to signs of infection caused avoidable harm.

Lumps and skin irregularities

Small temporary swellings can occur around injection sites. More persistent lumps, nodules, hard areas or uneven skin may indicate a complication that needs further assessment.

Medical literature on mesotherapy has reported non-infectious complications including nodule formation and granulomatous reactions. If a practitioner has used an unsuitable substance, injected it incorrectly or failed to respond appropriately when persistent lumps developed, this could form part of an investigation into negligent treatment.

Mesotherapy skin and tissue damage

More serious mesotherapy skin damage can include inflammation, ulceration, pigmentation changes and, rarely, tissue necrosis. Tissue necrosis means that tissue has died because it has been significantly damaged, and it can lead to lasting cosmetic injury and scarring.

These outcomes require proper medical assessment. The cause will depend on the circumstances, including the substances used, the injection sites, the injection technique and how any developing complication was managed.

Mesotherapy scars

Mesotherapy scars may develop where injections or subsequent complications damage the skin. Infection and tissue injury can also increase the risk of lasting scarring.

The NHS explains that scars can be raised, sunken, painful, itchy or uncomfortable and may take a long time to fade. Where negligent mesotherapy has caused permanent or significant scarring, the effect on appearance and day-to-day life can be considered when a claim is valued.

A physical examination from a medical professional can help establish whether symptoms are part of the expected healing process, a recognised complication or a sign that further treatment is needed.

How safe is mesotherapy?

The safety of mesotherapy treatment can depend on factors including the substances being injected, the practitioner's training, the injection technique and the hygiene standards used by the clinic. Patients should be assessed before treatment so that relevant medical conditions, medications and known allergies can be considered.

Even where appropriate precautions are taken, mesotherapy carries risks and common side effects such as bruising, redness, swelling and pain can occur. More serious complications, including infection, significant allergic reactions, persistent skin damage or scarring, may require medical attention.

A serious complication does not automatically indicate negligence. However, where the treatment itself, the clinic's safety procedures or the response to a developing problem fell below a reasonable standard, the circumstances may need to be investigated.

When could mesotherapy complications be caused by negligence?

To make a successful negligence claim in England and Wales, it is generally necessary to show that the care provided fell below the reasonable standard expected and that this caused, or materially contributed to, the injury.

Depending on the evidence, concerns about mesotherapy treatment could include:

• Reusing or failing to properly handle equipment
• An inappropriate injection technique or injection depth
• Using a product or substance that was unsuitable for the patient
• Failing to take relevant medical conditions, medications or allergies into account
• Failing to explain significant risks or reasonable alternatives before treatment
• Failing to provide appropriate aftercare information
• Failing to recognise or respond appropriately to a developing complication or allergic reaction

The General Medical Council's guidance on cosmetic interventions applies to doctors, physician associates and anaesthesia associates registered with the GMC who offer cosmetic interventions. It covers matters including competence, consent, discussions about benefits and risks, and safe practice.

The government has also recognised wider concerns around the regulation of non-surgical cosmetic procedures in England. Government proposals for a licensing scheme include mesotherapy and are intended to introduce requirements around practitioner standards, hygiene and infection control. The licensing requirements are not yet in force and would need to be introduced through secondary legislation.

What evidence can support a mesotherapy compensation claim?

Evidence can help establish what mesotherapy treatment you received, what happened afterwards and how the injury has affected you. Useful material may include:

• Photographs from before and after the mesotherapy procedure
• Treatment records and consent forms from the clinic
• Details of the products or substances injected
• Emails, messages or other correspondence with the practitioner
• GP, hospital or other medical records relating to the complication
• Records of antibiotics, corrective treatment or other medications
• Receipts for treatment, travel and other expenses
• Wage slips or other evidence of lost earnings

You should also keep a record of how your symptoms develop, including dates and any additional appointments you need.

If Cosmetic Surgery Solicitors takes a case forward, the claims process can include reviewing clinical records and obtaining an independent specialist medical report. Expert evidence can be important when establishing whether the care was negligent and what harm it caused.

What compensation could a mesotherapy claim cover?

The value of a mesotherapy negligence claim depends on the individual injuries and losses involved. Compensation may take account of physical pain and injury, visible scarring or other cosmetic damage, and any psychological injury supported by medical evidence.

A claim can also include financial losses caused by negligence. Depending on the circumstances, these could include the reasonable cost of corrective treatment, medical expenses, travel costs and loss of earnings.

Our guide to how cosmetic surgery compensation is calculated explains the factors that may be considered. It is usually not possible to value a claim accurately until the extent and likely long-term effect of the injury are understood.

How long do I have to make a mesotherapy negligence claim?

For claims in England and Wales, there is generally a three-year time limit for starting a personal injury claim. Under section 11 of the Limitation Act 1980, this normally runs from the date the cause of action accrued or, if later, the injured person's date of knowledge.

Different rules and exceptions can apply in some circumstances. You should therefore seek legal advice as soon as you believe negligent treatment may have caused an injury rather than waiting until the end of the limitation period.