<s>[INST] when to sit down on toilet lid before getting into shower was naked slipped off and fell back into a porcelain or ceramic tile toile paper holder built into wal vary hard. the round point hit in my lower back toward area red and left bruise with in one hour i was running a fever and have been for two days. [/INST] Hello,Your symptoms could be related to a local infection or inflammation. I recommend going to the ER for a physical exam, a sacral X-ray study and some blood lab tests for inflammation (complete blood count, PCR, ESR).Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Ilir Sharka, Cardiologist </s>