Nepedia
Back to Discover
Advanced Reader
🧬

Abscess

life science Maturity 7-9 Next article →

An abscess is a localized collection of pus that builds up within the body's tissues or organs.

Abszess
Abszess

This buildup is often the result of a bacterial infection. An abscess functions as a way for the body to wall off an infection from uninfected areas. While they are most common on the skin, they can also form in the lungs, brain, kidneys, or teeth. Because they can occur in vital organs, they can become quite serious or even fatal depending on their location. Understanding how they form and how doctors treat them is a key part of modern medicine.

The formation of an abscess follows a specific biological process known as pathophysiology. It begins when organisms or foreign materials destroy local cells in the body. This damage causes the release of signaling molecules called cytokines. These cytokines trigger an inflammatory response, which increases regional blood flow and draws many white blood cells to the site. To contain the threat, the body forms an abscess wall, or capsule, using adjacent healthy cells. This capsule is meant to keep the pus from infecting neighboring structures. However, this wall can also prevent immune cells from reaching the bacteria or the foreign object inside.

Abscesses can be classified into different types based on where they appear. Skin abscesses, also called cutaneous or subcutaneous abscesses, are the most frequent. These include superficial pustules known as boils or larger clusters called carbuncles. Anorectal abscesses occur near the anus and can be caused by infections in the glandular crypts, cancer, or trauma. There are also incisional abscesses, which develop as a complication after a surgical incision. Internal abscesses are much harder to identify and can form in various organs. Some specific cases include an appendiceal abscess, which is a complication of appendicitis.

Bacteria are the most common cause of these collections of pus. A major player is Staphylococcus aureus, which causes over 90% of documented skin abscesses. Some of these bacteria are methicillin-resistant, known as MRSA, which can be harder to treat. In certain populations, such as those with AIDS, a parasite called Toxoplasma gondii can cause widespread abscesses in the brain. In the developing world, parasites like dracunculiasis or myiasis can also be causes. While rare, foreign substances can also trigger the formation of an abscess.

Medical professionals use several methods to diagnose an abscess. For skin abscesses, doctors look for redness, warmth, swelling, and pain. A superficial abscess might feel "fluctuant," meaning it has a wave-like motion when pressed due to the moving pus.

ফোঁড়ার ছবি
ফোঁড়ার ছবি

If the diagnosis is not clear, doctors may use ultrasound imaging to see the area.

Ultrasound image of breast 110323101432 1023060
Ultrasound image of breast 110323101432 1023060

For deeper infections, such as those near the anus, a computer tomography (CT) scan is often used. In some cases, a doctor may use a needle to perform aspiration, which is the act of sucking out fluid to confirm the presence of pus.

The standard treatment for most uncomplicated skin abscesses is incision and drainage.

Cleaned abscess day 5
Cleaned abscess day 5

This involves making a small cut to allow the pus to escape. Doctors often use lidocaine, a local anesthetic, to suppress pain during the procedure. While some doctors use antibiotics, they are mainly recommended for severe cases or for people with weakened immune systems. Some medical practices involve packing the cavity with gauze to promote drainage, but some evidence suggests this may not be necessary. Newer methods, such as loop drainage, have also been studied in pediatric cases.

HumeralAbscess
HumeralAbscess

Abscesses represent a significant burden on healthcare systems worldwide. In 2005, approximately 3.2 million people visited emergency departments in the United States for abscesses. In 2008, about 13,000 people in Australia were hospitalized due to the condition. Certain factors can increase the risk of developing them, such as intravenous drug use. For these individuals, rates of abscesses can be as high as 65%. It is important to distinguish an abscess from a cyst, which has a defined wall and different material, or cellulitis, which involves redness but no pus collection.

661 words

Where will your curiosity go next?

Keep exploring at your chosen reading level.

🖼️ Images & Media (6)
File:Abszess.jpg
Abszess.jpg
File:ফোঁড়ার ছবি.jpg
ফোঁড়ার ছবি.jpg
UOTW 66 - Ultrasound of the Week 1.webm
File:Ultrasound image of breast 110323101432 1023060.jpg
Ultrasound image of breast 110323101432...
File:Cleaned abscess day 5.jpg
Cleaned abscess day 5.jpg
File:HumeralAbscess.jpg
HumeralAbscess.jpg
More to explore

What is Nepedia?

A free, ad-free encyclopedia for children. Every article is written at five reading levels, so the same page works for a five-year-old and a fifteen-year-old — use the level switcher above to see this one change. No account needed to read.