Health Conditions A-Z Infectious Diseases Sepsis Can Cause a Red Line on Your Skin—Here's What You Need To Know Noticing this mark on your skin can be a warning sign. By Maggie O'Neill Maggie O'Neill Twitter Maggie O’Neill is a health writer and reporter based in New York who specializes in covering medical research and emerging wellness trends, with a focus on cancer and addiction. Prior to her time at Health, her work appeared in the Observer, Good Housekeeping, CNN, and Vice. She was a fellow of the Association of Health Care Journalists’ 2020 class on Women’s Health Journalism and 2021 class on Cancer Reporting. In her spare time, she likes meditating, watching TikToks, and playing fetch with her dog, Finnegan. health's editorial guidelines Updated on December 15, 2022 Medically reviewed by Anju Goel, MD, MPH Medically reviewed by Anju Goel, MD, MPH Anju Goel, MD, MPH, is a public health consultant and physician with more than 10 years of experience in the California public health system. learn more Share Tweet Pin Email At least 1.7 million adults in America develop sepsis each year. And at least 350,000 adults who develop sepsis die during their hospitalization or are discharged to hospice each year. Sepsis is one of the oldest described illnesses (first described back in 400 BCE), and it's also been on the rise since 2000. Learn about this potentially fatal condition, how to recognize symptoms—one being a red line on your skin—and when to seek treatment. Facebook.com/ Alexandra Ruddy What Is Sepsis? Sepsis is a potentially life-threatening condition caused by an extreme reaction the body has to infection. It happens when an infection you already have triggers a chain reaction throughout your body. When sepsis occurs, it can progress rapidly. In severe cases, one or more organ systems fail. In the worst cases, blood pressure drops, the heart weakens, and the patient spirals toward septic shock. Once this happens, multiple organs—lungs, kidneys, liver—may quickly fail, which is usually fatal. "Sepsis is the most serious form of any infection," Frank Esper, MD, pediatric infectious disease specialist at Cleveland Clinic, told Health. "Sepsis is when you have an infection so bad it is disseminating across the body—kidneys shutting down, liver shutting down, heart's in trouble." Seeking medical care quickly is of the utmost importance once you see symptoms, which may include mental decline, a fever, and fatigue. Is Sepsis Contagious? You can’t contract or spread sepsis from/to other people. However, because sepsis can be caused by an infection, you can spread some infections to other people. Sepsis Symptoms and Diagnosis Common symptoms of sepsis are fever, chills, rapid breathing and heart rate, rash, confusion, and disorientation. Many of these symptoms are also common in other conditions, making sepsis challenging to recognize, especially in its early stages. If you have the following symptoms, your healthcare provider may diagnose sepsis: FeverLow blood pressureIncreased heart rateDifficulty breathing Healthcare providers may also perform tests to check for signs of infection or organ damage or to identify the bacteria that caused the infection that led to sepsis. They may also perform a chest X-ray or a CT scan to locate an infection. In addition, they can use a scoring system to determine if the function of a particular organ is declining and note the number of organ systems affected. A Red Mark or Red Line One of the symptoms of sepsis is a rash that does not fade when you press it.A red mark may appear if an infection travels through the lymph nodes to other body parts. "It's very concerning. You need to be on antibiotics immediately," said Dr. Esper, adding that his team sees these marks often. Red streaks or a red line on the skin may be a sign of lymphangitis. Lymphangitis is an infection of the lymph vessels and is a complication of some bacterial infections such as streptococcal infection or staphylococcal infection. The infection causes the lymph vessels to become inflamed. Lymphangitis may be a sign that the bacteria is spreading into the blood and may develop into sepsis, which can cause life-threatening problems. The red streaks can spread within a few hours. Fever, chills, and malaise may accompany lymphangitis. Dr. Esper said there's a simple way to track whether redness around a wound is spreading, which could signal infection. "Take a pen and mark around the site. Draw a border around the redness. Does the redness go beyond that mark [the next day]? If you're on antibiotics and the redness goes beyond those markings, we're on the wrong antibiotics, or we need something more powerful." 3 Common Allergy Rashes—and What They Look Like Causes of Sepsis Sepsis is caused by infections. Bacterial infections cause most cases of sepsis. But sepsis can be caused by viral or fungal infections, too. Normally, the body releases chemicals into the blood to fight infection. If unchecked, these chemicals trigger widespread inflammation, blood clots, and leaky blood vessels. As a result, blood flow is impaired, depriving organs of nutrients and oxygen and leading to organ damage. Risk Factors Anyone can get an infection that could potentially lead to sepsis. But some people are at greater risk for the urgent conditions. They include: Adults 65 or olderPeople with weakened immune systemsPeople with chronic medical conditions, such as diabetes, lung disease, cancer, and kidney diseasePeople with recent severe illness or hospitalizationPeople who survived sepsisChildren younger than one Treatment Healthcare providers should treat sepsis with antibiotics as soon as possible. Antibiotics are critical tools for treating life-threatening infections, like those that can lead to sepsis. Fast detection and initial treatment of sepsis are of utmost importance. Research shows that rapid, effective sepsis treatment includes: Giving appropriate treatment, including antibioticsMaintaining blood flow to organsGetting surgery to remove tissue damaged by the infection Individual immune responses and responses to treatment such as antibiotics may vary. Scientists are continually trying to find new therapies and determine which individuals are likely to benefit most from certain approaches. Actress Tanya Roberts Died of a UTI—How Can That Happen? A Quick Review Sepsis is the most serious form of infection, yet anyone can develop the potentially fatal condition. Sepsis is the body’s extreme response to an infection. It is life-threatening, and without timely treatment, sepsis can rapidly lead to tissue damage, organ failure, and death. Being educated about the symptoms of sepsis and seeking out medical treatment are critical to successful recovery from sepsis. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit Sources Health.com uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. Centers for Disease Control and Prevention. What is sepsis? Berg D, Gerlach H. Recent advances in understanding and managing sepsis. F1000Res. 2018;7:1570. doi: 10.12688/f1000research.15758.1 National Institute of General Medical Sciences. Sepsis. Centers for Disease Control and Prevention. How is sepsis diagnosed and treated? Sepsis Trust. What is sepsis? Medline Plus. Lymphangitis. Kano Y, Momose T. Acute lymphangitis. CCJM. 2020;87(3):129-130. doi:10.3949/ccjm.87a.19095