## Causes of Sewage Backup * **Clogged Drainpipes:** Debris, grease, or other materials can accumulate in drainpipes, causing a blockage that prevents sewage from flowing properly. * **Tree Root Intrusion:** Tree roots can penetrate and damage sewer lines, creating leaks or blockages. * **Pipe Damage:** Aging infrastructure, weather events, or accidental damage can cause cracks or breaks in sewer pipes, leading to leaks. * **Improperly Installed Toilets:** Faulty toilet seals or improper installation can allow sewage to leak into the floor or shower. ## Effects of Sewage Backup * **Health Hazards:** Raw sewage contains bacteria, viruses, and other contaminants that can pose serious health risks. * **Structural Damage:** Sewage backups can cause damage to floors, walls, and foundations if not addressed promptly. * **Unpleasant Odors:** Sewage backup releases foul odors, making the affected area unpleasant or uninhabitable. * **Water Damage:** Sewage backups can result in water damage to carpets, furniture, and other belongings. ## Why is Sewage Coming Up in My Shower? * **Clogged Drain:** The drainpipe connected to the shower may be clogged with hair, soap scum, or other debris, preventing sewage from draining properly. * **Faulty Plumbing:** A broken or damaged drainpipe underneath the shower can allow sewage to leak into the shower drain. * **Sewer Line Blockage:** A blockage in the main sewer line, such as a tree root intrusion or collapsed pipe, can cause sewage to back up into the shower.