I cannot tell if I maybe fractured my knee or deeply bruised it.?

X-ray. An x-ray can be performed to determine if it is fractured. There are many different types of injuries. Each type of injury requires has its own plan of care. Treatment may vary depending on the diagnosis. Have it evaluated by your physician and get the appropriate diagnosis and plan of care.
You. Need to be evaluated by an orthopedist.

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How can you tell difference between fractured knee cap and bruised bone?

Image study. The fracture, or contusion of patela, or even a sprain strain of knee joinit can have similar pain and confused symptoms. A x ray will rule out boney problem for most part. Read more...