It only looked bad . Right after , my scraped skin was red , but by the next day , it was a deep purple colour . It was good that I had taken a shower , since you are not supposed to wash the affected area for at least 12 hours . Maybe it did not hurt because other parts of my body still hurt from my long bike ride .

Generate a question about the above context.
What may have been the reason my skin was scraped and red ?