If, as you say, the pain isn’t too bad and you’re able to move, walk, cycle etc, you don’t have compartment syndrome - the primary symptom of this is severe pain.
My guess is that the initial injury has damaged a vein in your lower leg, most likely a very tiny, superficial one, causing the impressive bruising. This will almost certainly heal by itself and probably looks a lot more dramatic than it really is.
The main thing I would be be worried about is if the calf swells, or even just continues to feel heavy or tight, then you should get it looked at properly, because if it’s an injury to a deeper vein you might be at risk of DVT (deep vein thrombosis). If left untreated this can become very serious.
However, if the bruising settles (although it is likely to turn some very interesting colours eg. Green / yellow as it develops over the next few days) and you don’t have any other problems, I wouldn’t be too concerned.
Important disclaimer - beware internet advice from strangers! If you’re even slightly worried about anything at all, please please please have someone look at it in person!
If, as you say, the pain isn’t too bad and you’re able to move, walk, cycle etc, you don’t have compartment syndrome - the primary symptom of this is severe pain.
My guess is that the initial injury has damaged a vein in your lower leg, most likely a very tiny, superficial one, causing the impressive bruising. This will almost certainly heal by itself and probably looks a lot more dramatic than it really is.
The main thing I would be be worried about is if the calf swells, or even just continues to feel heavy or tight, then you should get it looked at properly, because if it’s an injury to a deeper vein you might be at risk of DVT (deep vein thrombosis). If left untreated this can become very serious.
However, if the bruising settles (although it is likely to turn some very interesting colours eg. Green / yellow as it develops over the next few days) and you don’t have any other problems, I wouldn’t be too concerned.
Important disclaimer - beware internet advice from strangers! If you’re even slightly worried about anything at all, please please please have someone look at it in person!