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What Diseases Can You Get From Sewage Backup?
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Sewage backup can expose you to a range of dangerous diseases. These illnesses stem from the bacteria, viruses, and parasites present in raw sewage.
Promptly addressing sewage backup is vital to protect your health and prevent the spread of serious infections.
TL;DR:
- Sewage backup carries harmful bacteria, viruses, and parasites.
- Exposure can lead to gastrointestinal illnesses, skin infections, and respiratory problems.
- Children and those with weakened immune systems are at higher risk.
- Professional cleanup is essential for safety and proper disinfection.
- Never attempt to clean up sewage backup yourself without proper protection.
What Diseases Can You Get From Sewage Backup?
When sewage backs up into your home, it’s more than just a messy inconvenience. It’s a serious health hazard. Raw sewage is teeming with pathogens that can cause a variety of debilitating illnesses. Understanding these risks is the first step in protecting yourself and your family.
The Dangers Lurking in Sewage
Sewage is a complex mixture of human waste, household chemicals, and debris. This makes it a breeding ground for microscopic organisms. Research shows that untreated sewage can contain hundreds of different types of bacteria and viruses. These pathogens are the primary culprits behind the diseases you can contract.
Gastrointestinal Troubles
One of the most common health issues from sewage exposure is gastrointestinal illness. This happens when you ingest contaminated water or touch surfaces with the virus and don’t wash your hands. You might experience symptoms like nausea, vomiting, diarrhea, and severe stomach cramps. These are often signs of infections caused by bacteria like E. coli or Salmonella.
Skin and Eye Infections
Direct contact with sewage can lead to skin infections. Open cuts or abrasions are particularly vulnerable. Bacteria can enter the bloodstream, causing redness, swelling, and pain. Eye infections can also occur if contaminated water splashes into your eyes. Proper cleanup requires wearing protective gear to avoid these problems.
Respiratory Issues
Inhaling airborne particles from sewage can lead to respiratory problems. Mold and bacteria thrive in damp, contaminated environments. This can trigger asthma symptoms or lead to infections like bronchitis. Ensuring good ventilation during cleanup is important, but professional services are better equipped to handle this.
Specific Pathogens and the Diseases They Cause
Let’s look at some of the specific types of germs found in sewage and what they can do. Many experts agree that these contaminants pose a real threat.
Bacteria
Sewage is rich in bacteria like E. coli, Salmonella, Shigella, and Campylobacter. These can cause severe diarrhea, fever, and abdominal pain. Leptospirosis is another bacterial infection that can result from exposure to contaminated water, affecting the kidneys and liver.
Viruses
Hepatitis A, Norovirus, and Rotavirus are common viruses found in sewage. Hepatitis A can cause liver inflammation. Norovirus and Rotavirus are notorious for causing vomiting and diarrhea, often referred to as the “stomach flu.”
Parasites
Parasites like Giardia and Cryptosporidium are also present. These can cause prolonged diarrhea and dehydration. They are particularly concerning for children and individuals with compromised immune systems.
Who is Most at Risk?
While anyone exposed to sewage backup is at risk, some groups are more vulnerable. Children, the elderly, and people with chronic illnesses or weakened immune systems are more susceptible to severe infections. It’s crucial to take extra precautions for these individuals.
Vulnerable Populations
For those with existing health conditions, even a mild infection can become serious. Their bodies may struggle to fight off the pathogens present. This highlights the importance of immediate and thorough cleanup to eliminate the biohazard risks from contaminated water.
Preventing Exposure During a Sewage Backup
The best way to avoid illness is to prevent exposure in the first place. If you suspect a sewage backup, your immediate priority should be safety. Do not touch the water or contaminated items with bare hands. Keep children and pets away from affected areas.
Understanding the Risks of DIY Cleanup
Many homeowners wonder if they can handle the cleanup themselves. We found that attempting cleaning after a sewer backup without the right knowledge and equipment is extremely risky. There are significant biohazard risks from contaminated water that require specialized handling. You might think you’re saving money, but the cost of illness can be far greater.
Consider the potential dangers:
- Inhaling harmful mold spores.
- Contacting infectious bacteria and viruses.
- Spreading contamination to unaffected areas.
- Improper disposal of contaminated materials.
It’s important to know what causes a sewer to back up into a house to prevent future issues, but the immediate concern is safety.
When to Call the Professionals
For any sewage backup situation, it’s almost always best to call a professional restoration company. They have the training, equipment, and protective gear needed to handle the situation safely. This includes specialized vacuums, air scrubbers, and disinfectants.
The Importance of Professional Remediation
Professionals understand the science behind effective cleanup. They can identify all contaminated materials and ensure proper removal and disposal. They also know how to thoroughly disinfect and dry affected areas to prevent mold growth. This ensures that all biohazard risks from contaminated water are properly managed. If you’re asking yourself, “Can I clean up sewage backup myself?“, the answer is usually no, especially if there’s significant contamination.
Identifying Signs of a Problem
Knowing the signs of a sewage backup can help you act quickly. Slow drains, gurgling sounds from pipes, and foul odors are common indicators. You might also notice water backing up into toilets or showers. Recognizing what are signs of a main sewer line clog is the first step to addressing the problem before it escalates.
Steps to Take Immediately After a Sewage Backup
If you discover a sewage backup, here’s what you should do:
- Evacuate the area if the backup is severe.
- Turn off your water supply to prevent more water from entering the system.
- Do not use toilets or drains until the issue is resolved.
- Contact a professional restoration service immediately.
- Document the damage with photos for insurance purposes.
Remember, dealing with sewage backup is not a DIY project. The risks are too high.
The Process of Professional Sewage Cleanup
Professional restoration companies follow a strict protocol for sewage cleanup. They assess the damage and contain the affected area. Then, they remove contaminated materials and water. After that, they clean and disinfect all surfaces. Finally, they dry and dehumidify the space to prevent further damage.
Containment and Removal
The first step is to prevent the spread of contamination. Professionals use barriers and specialized equipment. They carefully remove sewage-soaked materials like carpets, drywall, and furniture. This is where understanding how do you clean up after a sewage backup is critical, as improper removal can worsen the situation.
Cleaning and Disinfection
Once the bulk of the sewage is removed, all surfaces are thoroughly cleaned and disinfected. This involves using powerful antimicrobial solutions. The goal is to kill all remaining bacteria, viruses, and other pathogens. This step is essential to mitigate the biohazard risks from contaminated water.
Drying and Restoration
Proper drying is crucial to prevent mold growth and structural damage. Professionals use industrial fans and dehumidifiers. Once dry, they can begin the restoration process, bringing your home back to its pre-loss condition. They will advise on unsafe water cleanup precautions.
Long-Term Health Concerns
Even after cleanup, lingering contaminants can pose long-term health risks. Mold growth is a common issue if areas are not dried thoroughly. Exposure to mold can cause allergies, asthma, and other respiratory problems. This is why professional assessment and remediation are so important.
Mold and Mildew Growth
Dampness from sewage backup creates an ideal environment for mold. Mold spores can spread quickly and affect indoor air quality. Some molds produce mycotoxins, which can have serious health effects. A professional cleanup ensures that the environment is not just clean, but also free from the conditions that allow mold to thrive.
Conclusion
Sewage backup is a serious issue that can lead to a range of diseases due to the harmful pathogens present. From gastrointestinal distress to severe infections, the health risks are significant. It is vital to understand the dangers and to act quickly. Attempting to clean up sewage backup yourself is not recommended due to the high risk of exposure and the potential for incomplete remediation. For your safety and the health of your home, always rely on trained professionals. Federal Way Restoration Pros is a trusted resource for expert sewage damage cleanup and restoration services in the Federal Way area, ensuring your property is safely and thoroughly restored.
What are the most common symptoms of sewage exposure?
The most common symptoms include nausea, vomiting, diarrhea, fever, abdominal pain, and skin rashes. Respiratory issues like coughing and wheezing can also occur.
Is it safe to be in a house after a sewage backup?
It is generally not safe to be in a house with an active sewage backup. The air can contain harmful bacteria and mold spores. Until professionals have thoroughly cleaned and disinfected the area, it’s best to stay away.
How long does it take to recover from sewage-related illnesses?
Recovery time varies greatly depending on the specific illness and the individual’s health. Mild gastrointestinal issues might resolve in a few days, while more severe infections or parasitic infestations can take weeks or even months to fully recover from.
Can pets get sick from sewage backup?
Yes, pets can also get sick from exposure to sewage backup. They are often more susceptible than humans due to their tendency to lick their paws and fur, and their curiosity. Keep pets away from affected areas and consult a veterinarian if you suspect they have been exposed.
What should I do if I see sewage backing up in my yard?
If you see sewage backing up in your yard, it indicates a problem with your sewer line. Avoid contact with the water and keep children and pets away. Contact your local municipality or a qualified plumbing and restoration professional immediately to identify the cause and address the issue.

Douglas Hopper is a licensed Damage Restoration Expert with over 20 years of hands-on experience in disaster recovery and structural mitigation. As a seasoned industry authority, Douglas has spent two decades mastering the technical complexities of environmental safety, providing property owners with the reliable expertise and steady leadership required to navigate high-stress property losses with absolute confidence.
𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: Douglas holds elite IICRC credentials, including Water Damage Restoration (WRT), Applied Structural Drying (ASD), Mold Remediation (AMRT), Fire and Smoke Restoration (FSRT), and Odor Control (OCT).
𝗙𝗮𝘃𝗼𝗿𝗶𝘁𝗲 𝗣𝗮𝘀𝘁𝗶𝗺𝗲: An avid outdoorsman and classic car enthusiast, Douglas enjoys restoring vintage engines and mountain biking, hobbies that reflect the mechanical precision and endurance he brings to every restoration project.
𝗕𝗲𝘀𝘁 𝗣𝗮𝗿𝘁 𝗼𝗳 𝘁𝗵𝗲 𝗷𝗼𝗯: He finds the most fulfillment in providing a clear path forward for families, turning a site of devastation back into a safe, healthy, and comfortable home.
