Patient's question:
Sure, here is the translation of the content you provided:```
No
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Doctor's answer:
Colitis, also known as nonspecific ulcerative colitis, often starts slowly with varying severity. Diarrhea is the main symptom, characterized by the passage of purulent bloody stools, mucoid bloody stools, or bloody stools, often accompanied by tenesmus. It typically follows the pattern of abdominal pain → urge to defecate → defecation → relief. However, it generally does not cause lower back pain.