Two kinds of raised scar
Most scars flatten and fade over months. In some people, the skin keeps producing extra scar tissue after a wound has closed, and the scar becomes thick, firm and raised. Two types are commonly described: hypertrophic scars and keloids. They look similar at first glance, but doctors tell them apart because they behave differently.
This is general information only. A raised bump after a piercing or tattoo has several possible causes, and only a medical professional can say which one applies.
Hypertrophic scars
A hypertrophic scar is raised and often red or pink, but it stays within the boundaries of the original wound. It typically appears within weeks of the injury. Over time, often a year or more, many hypertrophic scars flatten and soften on their own, although some remain noticeable.
Keloids
A keloid also forms from excess scar tissue, but it grows beyond the edge of the original wound, sometimes much larger than the injury that triggered it. Keloids can appear weeks or even months after the wound, may be itchy, tender or painful, and generally do not shrink by themselves. They also tend to return after simple removal, which is why they are treated with care by doctors.
Keloids are not infections and not cancer. They are an overactive healing response.
Who is more likely to get them
Doctors generally note that some people are more prone to keloids than others. Factors often mentioned include:
- a personal or family history of keloids or thick scars
- keloids appearing more commonly among people with darker skin tones, though anyone can develop them
- younger adulthood, rather than childhood or older age
- certain body areas, such as the earlobes, chest, shoulders and upper back
These are patterns, not predictions. Someone with every risk factor may never form a keloid, and someone with none may still do so.
Why this matters for piercings and tattoos
Any procedure that wounds the skin can in theory trigger abnormal scarring. Piercings, especially on the ear, are a familiar example, and so are tattoos on areas prone to thick scars. A tattoo does not usually cause raised scarring on its own, but the damage can cause it in someone predisposed.
Irritation raises the odds of trouble. Pressure, friction, repeated trauma, snagging and infection can all push a piercing toward a bump. Not every raised bump is a keloid, though. Several other things can look similar:
- An irritation bump or granuloma, often a soft, moist bump next to a piercing, is a common healing problem that may settle with proper care.
- A hypertrophic scar that will gradually settle.
- An allergic reaction or an infection.
Telling these apart is not something to guess at, and it affects how they are treated. An approach that helps one problem can make another worse. Understanding the broader process of scar tissue formation can help, but it does not replace an examination.
If you have a history of keloids
Speak with a doctor, ideally a dermatologist, before getting a piercing or a tattoo. They may advise you to avoid certain procedures or locations, or to think carefully about the risks. A professional piercer or tattooer should also be told. A responsible one may suggest you check with a doctor first and may decline the work.
If a raised bump develops
- See a doctor rather than treating it yourself. Experimenting with creams, pressure devices or home remedies can irritate the area.
- Do not cut, squeeze or pick at the bump.
- Do not try to remove jewelry or ink on your own without advice. Whether to remove jewelry is a medical question in this context.
- Mention when the wound occurred, how it was cared for, and whether you or relatives have had thick scars.
Medical options, in general terms
A doctor might discuss options for managing a raised scar. These can include steroid injections, silicone sheeting or gel, pressure treatment, laser treatment, freezing, or in some cases surgery. Some are used together. Results vary, there is no guaranteed fix, and recurrence can happen, especially with keloids. Which options suit a given scar depends on its size, location, age and your own history, so scar revision is always a conversation with a doctor.
What can lower the chance of problems
- Choosing a licensed professional with sterile equipment, since infections and trauma contribute.
- Following the professional’s aftercare instructions closely.
- Avoiding unnecessary touching, twisting and pressure on the healing area.
- Avoiding repeated piercings in the same spot if scarring has occurred.
- Seeking medical advice early if the area looks unusual.
None of this guarantees against raised scarring, since some of the risk is built into your biology.
Takeaway
A keloid is an overgrown scar that extends beyond the original wound; a hypertrophic scar is raised but stays within it. Both are best assessed by a doctor, and anyone with a history of thick scars is wise to consult one before body art.