The conversation before the first treatment isn't a formality to tick off. It's the moment when you decide whether to pick up the needle at all. Most clients have no idea that something in their health situation might matter, so they won't mention a pacemaker, diabetes or medication they've been taking for six months on their own.
Below you'll find an organised list of situations in which the treatment isn't performed at all, and those in which it's performed with caution or only after consulting a doctor.
Why is knowing the contraindications more important than the technique itself?
Because technique can be improved with every treatment, while the mistake of taking someone you shouldn't have taken usually doesn't give you a second chance. Responsibility for the consequences of such a treatment lies with the person who performed it. A client signing a consent form doesn't take on the risk resulting from your decision.
There's also simple pragmatism in this. A complication after a treatment in someone with undiagnosed diabetes or an active skin infection isn't just a medical problem, but also a reputation that spreads faster than any advertisement in a city the size of Kraków. In a service based on referrals, that's serious.
What are the absolute contraindications to electrolysis?
The treatment is not performed on people with an implanted pacemaker or cardioverter-defibrillator, with uncontrolled epilepsy, with active skin infections and inflammation in the treatment area, with cancerous lesions, or with uncontrolled diabetes with impaired healing. In these cases there's no room for negotiation or a test treatment.
Why does a pacemaker rule out electrolysis?
Because the treatment involves passing current through the body, and implanted devices such as a pacemaker or cardioverter-defibrillator can react to electromagnetic interference. The consequences of such interference are disproportionately serious compared with the benefit of removing hair, which is why it's commonly treated as an absolute contraindication.
If the client mentions any device implanted in the chest area, the matter ends at the consultation. Not on your judgement, but on the written opinion of her cardiologist, and even then it's worth thinking it over carefully.
Is epilepsy a contraindication to the treatment?
Uncontrolled epilepsy is an absolute contraindication, because the pain stimulus and stress associated with the treatment can trigger a seizure. With epilepsy that's well controlled with medication, the decision is made after consulting the treating neurologist, and shorter sessions are planned.
When do skin lesions in the treatment area rule out electrolysis?
The treatment isn't performed on skin with an active bacterial, viral or fungal infection, fresh sunburn, active inflammation, or on lesions of unclear nature. Inserting a needle into such skin means a risk of spreading infection and poorer healing.
The most common case in the clinic is cold sores. With an active lesion around the mouth, the treatment is postponed until fully healed. For clients with recurrent cold sores, it's worth agreeing antiviral prophylaxis with a doctor before sessions in this area, because the treatment itself can trigger a recurrence.
What are the relative contraindications, where the treatment requires caution?
Relative contraindications include pregnancy, well-controlled diabetes, anticoagulant therapy, isotretinoin therapy, autoimmune diseases, a tendency to keloids, post-transplant conditions and immunosuppressive treatment. In each of these cases the treatment may be possible, but it either requires the treating doctor's consent or a change of parameters and session plan.
Can electrolysis be performed during pregnancy?
In clinical practice it's customary to postpone treatments until after giving birth, mainly due to the lack of studies confirming full safety and the fluctuating hormones, which disrupt the hair growth cycle anyway. Even if the treatment were neutral for the course of pregnancy, its effectiveness during this period is hard to predict.
There's also the question of comfort. A lower pain threshold, lying in one position for longer and greater skin sensitivity mean that a session can simply be hard to bear. The sensible answer is: we'll come back to it after breastfeeding has ended.
How should you proceed with clients who have diabetes?
Uncontrolled diabetes rules out the treatment, because high glucose levels impair healing and increase the risk of infection. Well-controlled diabetes doesn't rule it out, but requires the treating doctor's consent, shorter sessions and exceptionally careful aftercare. It's also worth remembering that in these people the skin can be less sensitive to pain, so the client's reaction isn't a reliable indicator when choosing parameters.
What about people taking anticoagulants or isotretinoin?
Anticoagulants increase the tendency to bruising and minor bleeding, so the treatment is performed after consulting a doctor and with gentler settings. Oral isotretinoin requires a waiting period, usually six months to a year after the end of therapy, because during and just after treatment the skin heals differently and scars more easily. The specific interval is set by the treating dermatologist.
This second situation happens more often than you might think, especially among younger clients after acne treatment. A question about dermatological treatments in the last two years should be a permanent part of the questionnaire.
Does a tendency to keloids rule out electrolysis?
A tendency to keloids and hypertrophic scars is a contraindication to working in that area, because even a properly performed treatment causes micro-trauma, and in these people any micro-trauma can trigger the formation of a scar. If the client has keloids after other treatments, it's worth consulting a dermatologist about the decision and, with consent, starting with a small test and assessing healing after a few weeks.
Can electrolysis be performed on birthmarks and moles?
Hair growing from moles is not removed without prior assessment by a dermatologist. A mole is a lesion whose nature isn't assessed in a beauty clinic, and interfering with it can make later diagnosis more difficult. It's one of those limits you don't cross, even at the client's express request.
The solution is simple and doesn't end the relationship. The client goes for a dermatoscopy appointment, and if the doctor sees no contraindications and gives written consent, you work. Not infrequently, this actually ends with the doctor removing the mole itself, after which the matter comes back to you with no doubts.
What intervals should you keep after other cosmetic treatments?
Electrolysis isn't performed on skin freshly after a chemical peel, after laser treatments, after mesotherapy or near recently injected fillers. As standard, you wait two to four weeks, and longer after deeper treatments, until the epidermis has fully regenerated. The same rule applies the other way round when planning other treatments after an electrolysis session.
Separately, it's worth establishing how the client has removed hair so far. The hair must be long enough to grasp, so wax and tweezers rule out the treatment for several weeks. Shaving, on the other hand, doesn't interfere, and that's good news worth passing on straight away, because many people don't know they can shave normally during the preparation period.
Can excess hair always be treated with electrolysis alone?
Not always, and this is one of the most important things to pick up during the consultation. If excess hair appeared suddenly and is accompanied by menstrual irregularities, acne or changes in body weight, the cause may be hormonal and requires diagnosis. Without treating the underlying cause, hair will appear in new follicles, and the client will decide that the treatment doesn't work.
That doesn't mean you send such a person away empty-handed. You can work in parallel with the diagnosis, but you warn her honestly what the course will look like. A client with polycystic ovary syndromewho knows what to expect stays with you for years. The same client, promised a permanent effect without caveats, leaves after four sessions feeling misled.
How do you run a consultation so as not to miss a contraindication?
The basis is a written questionnaire with specific questions, not a general “is there anything I should know”. The client isn't obliged to know what's relevant, so you have to ask directly about implanted devices, chronic diseases, medications, pregnancy, allergies, a tendency to scar and treatments performed in recent months. The questionnaire is signed and kept, and updated for subsequent series.
It's worth asking separately about supplements and over-the-counter medicines, because many people don't consider them medicines and simply don't mention them. The same goes for a nickel allergy, which doesn't rule out the treatment, but determines the choice of gold-plated needles.
The second pillar is inspecting the area in good light before starting work. You'll see moles, fresh scratches, inflammatory lesions and traces of recent treatments for yourself, regardless of what the client wrote in the questionnaire.
What should you do if a client won't give information or has concealed it?
A lack of information is treated as a contraindication. If you don't know whether something poses a risk, you don't perform the treatment until the matter is clarified. Refusing is always safer here than a treatment performed in uncertainty, however much the client insists.
In practice, it's almost always enough to explain why you're asking. Someone who hears that the question about a pacemaker isn't nosiness but a condition of a safe treatment answers without hesitation. Problems arise mainly when the questionnaire looks like a form to tick off rather than a conversation.
Why is it worth learning contraindications on a course rather than from articles?
Because the list of contraindications is only the beginning. The difficulty lies in recognising unusual situations in which nothing fits any point directly, and the decision has to be made in the clinic, with the client in front of you. This is learned by discussing specific cases with someone who has worked through hundreds of them.
On a good course this part always comes before practice, together with health and safety and workstation hygiene rules, and only then do you move on to choosing the method and parameters. I've written more about how the treatment technique is matched to a specific hair type in the article on which electrolysis methods are used in practice.
If you want to work through contraindications and the consultation on real cases rather than a list of points, see what professional electrolysis training looks like — taught one-to-one, with practice on models from day one.
This article is for information purposes and is aimed at people working in the beauty industry. It does not replace a medical consultation or an individual health assessment. In any doubtful situation, the decision to allow the treatment is made after consulting the client's doctor.
