What does an abscess smell like?
James Craig
Published Jan 12, 2026
What are the signs and symptoms of an abscess? You may have a swollen mass that is red and painful. Pus may leak out of the mass. The pus will be white or yellow and may smell bad.
Does an abscess smell?
An abscess is a collection of pus. Pus is a thick fluid that usually contains white blood cells, dead tissue and germs (bacteria). The pus may be yellow or green and may have a bad smell.
What does pus smell like?
Pus is typically an opaque white-yellow color, but it can also be tinted brown or even green. 1 It's usually odorless, though it may sometimes smell foul.
Why does pus from an abscess smell?
The smell is from the content of the cyst, which consists of bacteria and broken down cells from human tissue. Anaerobic bacteria, a type of bacteria that thrive in low oxygen conditions in wounds, often infect HS cysts. The bacteria degrade the white cells that attack them, as well as other cells in the tissue.
Does pus have a smell to it?
Depending on the location and type of infection, pus can be many colors, including white, yellow, green, and brown. While it sometimes has a foul smell, it can also be odorless. Keep reading to learn more about what causes pus and when you should call your doctor.
24 related questions foundWhy does my pus smell like fish?
If you notice a fishy odor from your vagina or vaginal discharge, it may be caused by sweating, a bacterial infection, or even your genetics. The most common is cause is vaginitis, an infection or inflammation of the vagina.
Do popped boils smell?
If it does burst, a person may notice yellow, unpleasant-smelling pus. It is not clear exactly why people get cysts, but they form when skin cells quickly multiply.
How do you stop an abscess from smelling?
Applying dressings soaked in a mixture of normal saline and intravenous metronidazole solution has also been reported as helpful for controlling odor. Systemic Metronidazole can be used if there is evidence of deep tissue infection causing foul odor.
What does cyst pus smell like?
They multiply, forming the walls of the cyst; the fluid inside is excreted by these cells. Most descriptions of fluid from a cyst say it has a "foul" odor.
Does an infected cyst smell?
The material in the cyst is often cheesy, fatty, or oily. The material can be thick (like cottage cheese) or liquid. The area around the cyst may smell bad. If the cyst breaks open, the material inside it often smells bad too.
What color is abscess drainage?
Purulent Wound Drainage
It's a white, yellow, or brown fluid and might be slightly thick in texture. It's made up of white blood cells trying to fight the infection, plus the residue from any bacteria pushed out of the wound.
Why does my boil have a smelly odor?
In some cases the boil may smell unpleasant, which is usually when the boil drains and this is caused by the existence of bacteria within the pus.
Why does my pus smell like cheese?
The lining of an epidermoid cyst is made up of skin cells, which secrete keratin. Keratin is the material that makes up the hair, and the outer layer of skin. The contents of an epidermoid cyst are soft and “cheese-like,” with an unpleasant smell.
What does wound infection smell like?
But infected wounds often have a distinct odor along with other symptoms. Some bacteria can smell sickly sweet, while others can be quite strong, putrid, or ammonia-like. If you notice a strong or foul odor, especially with pus, drainage, or warmth present, alert your doctor as soon as possible.
Should I go to the ER for abscess?
Although they are not usually life threatening, you should seek medical help if you notice an abscess on your body. If you discover a lump or unusual spot on your skin or in your mouth that is sore, red or inflamed and warm to the touch, you should see an emergency room doctor to examine the affected area.
What does a burst abscess taste like?
If an abscess ruptures, you may notice a sudden foul taste or even salty fluid in your mouth. You'll probably also notice that your pain subsides and think that you are out of the woods.
Why does pilonidal cyst stink?
When a pilonidal cyst gets infected, it forms an abscess, eventually draining pus through a sinus. The abscess causes pain, a foul smell, and drainage.
Why does my wound smell like death?
3) Foul Odor. The presence of odor in a wound might be a sign of decaying or dead tissue. Do not use scented creams or other scented toiletries to try to hide the smell, because this could worsen the condition of the wound.
What is the cheesy stuff in a cyst?
Sebaceous cysts are soft bumps under the skin. They contain keratin, which may look cheesy and have a foul odor. They may or may not get larger over time. Leave them alone or they can become infected.
What does gangrene smell like?
The color will change from red to black in dry gangrene, or it will become swollen and foul-smelling in wet gangrene. Gas gangrene will produce particularly foul-smelling, brownish pus.
How do you tell if an abscess is healing?
After the initial discharge of a bit of pus and blood, your wound should be clear. If the discharge continues through the wound healing process and begins to smell bad or have discoloration, it's probably a sign of infection.
Can a wound smell and not be infected?
If a wound continues to emit an unpleasant odor, even with proper cleaning and care, there may be cause for concern. While any wound can be accompanied by a smell, most individuals can recognize one that is overly strong or just isn't quite right and may be a sign of infection.
How do you get rid of hidradenitis smell?
Tea tree oil has both antimicrobial and anti-inflammatory properties, says Dr. Zeichner, making it potentially great for treating a variety of skin conditions, including acne, dandruff, and—yep—HS. “It helps reduce odor by lowering levels of odor-causing bacteria in the skin,” he says.
Why does my pimple smell?
The first sign of acne conglobata may be pimples that get worse instead of better, eventually forming inflamed, infected nodules. These nodules are filled with pus and may have a foul odor. The most common symptoms of acne conglobata are: Deeply inflamed abscesses in the skin.
What is the hard white stuff in a boil?
As a boil matures, it grows larger, and its center fills with pus. This pus-filled center is called the core. Eventually, the boil comes to a head, meaning a yellow-white tip develops on top of the core.