Brief Answer: Hi and welcome to XXXXXXX Detailed Answer: Thanks for the query. Well,bruise is probably gone from superficial skin layer where it is visible,but bruise(hematoma) forms in deeper subcutaneous tissues too and there it can persist for few weeks before it is resorbed. Also,there can be muscle contusion or traumatic fibroma which is commonly seen after such injuries. In every case, I dont think that you need to visit doctor since all these things will pass spontaneously in short time. You can apply some ice compresses,but even without it,it will pass. You just need to be sure that there wasnt bone fracture in this area but it happens usually in more intensive injuries and in older people. Wish you good health. Feel free to ask. Regards

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