Dr. Ton Thi Anh Tu, from the Pediatric Surgery department at Tam Anh General Hospital, Ho Chi Minh City, observed a 4x3 cm abscess filled with pus. Blood tests revealed an elevated white blood cell count of 23,54 K/µL, indicating infection. Doctors diagnosed a buttock abscess and performed an incision to drain the pus. Lab results confirmed Staphylococcus aureus as the causative agent, a common bacterium in pediatric skin and soft tissue infections.

Staphylococcus aureus, a bacterium commonly found on the skin and in the noses of healthy individuals, typically causes no harm. However, it can lead to folliculitis, boils, or abscesses when it enters the body through scratches, abrasions, or damaged skin. Most infections respond well to antibiotics, often combined with pus drainage. Without timely intervention, the infection can spread, leading to cellulitis, larger abscesses, or even sepsis if it enters the bloodstream.

Following the drainage procedure, Huy received antibiotics, pain medication, and wound care. Within four days, the swelling and pain in his buttock subsided, pus discharge stopped, and his infection improved. Huy made a full recovery and was discharged.

Doctor Tu (first from right) and her team treat Huy's buttock abscess. Photo: Tam Anh General Hospital

Boils and abscesses represent subcutaneous infections, typically forming when bacteria penetrate minor skin abrasions or moist, irritated areas. In response to infection, the body dispatches white blood cells to combat the bacteria, resulting in pus—a mixture of dead white blood cells, bacterial remnants, fluid, and necrotic tissue. This accumulation of pus creates an inflamed lump beneath the skin; an untreated boil can escalate into a significant abscess. Children commonly develop these infections on their buttocks, thighs, armpits, or back.

Doctor Tu advises parents to seek medical attention if their child develops a red, painful, hot lump on the skin, particularly if it grows rapidly or shows signs of pus. Parents should avoid squeezing boils, as this can spread bacteria and intensify the infection. Prompt and appropriate treatment is essential to prevent complications such as cellulitis and sepsis.

Minh Tam

*Patient's name has been changed