At first glance, the skin lesion in this image can look alarming.
The photograph shows a large, swollen area on the back of the neck with significant discoloration and several raised spots containing what appears to be yellowish material. While the image is striking, a photograph alone cannot determine exactly what caused the lesion or provide a medical diagnosis.
However, changes like these can occur with certain types of skin infections, including boils, abscesses or carbuncles.
What Could Cause a Lesion Like This?
A skin abscess is a pocket of pus that can develop beneath the skin, often as the result of a bacterial infection. It may appear swollen, red or discolored and can be painful or warm to the touch.
A carbuncle is a connected cluster of boils that develops beneath the skin. These infections can become deeper and more extensive than an individual boil.
The back of the neck is also one of the areas where boils and carbuncles can occur.
Still, other skin conditions can look similar, which is why identifying the cause requires an examination by a qualified healthcare professional.
Why You Shouldn’t Try to Pop It
One of the biggest mistakes someone could make after seeing a swollen, pus-filled lesion is trying to squeeze or puncture it.
Medical sources specifically advise against doing this with boils or abscesses because squeezing or attempting to drain them yourself can spread bacteria into surrounding tissue.
Depending on the size and severity of an abscess, a healthcare professional may determine that it needs to be drained under appropriate medical conditions. Some infections may also require antibiotics.
Warning Signs That Shouldn’t Be Ignored
A skin lump deserves medical attention if it is becoming increasingly painful, rapidly getting larger, or surrounded by increasing redness or swelling.
Other warning signs can include fever, chills, significant warmth, pus-filled areas or feeling generally unwell.
A particularly important concern is when a skin infection appears to be spreading or symptoms are becoming significantly worse.
The Image Is a Reminder
Photos like this can easily make people curious—or even tempted to search for an explanation online.
But when it comes to unusual skin changes, appearance alone isn’t enough to diagnose the problem.
If someone develops a painful, swollen or draining lesion like the one shown, especially if it is worsening or accompanied by fever, the safest approach is to have it evaluated by a healthcare professional rather than attempting to treat or drain it at home.
A strange-looking skin lesion may have a straightforward explanation, but knowing the exact cause is something that requires proper medical evaluation.