 [ Symptoms ] still have a painful lump on shin bone a month after hitting it hit shin bone on metal stairs a month has gone by and i have a painful lump where the bruse was [ Disease ] ouch so sorry to hear of your mishap while this certainly is not an emergency situation you might want to make an appointment with your primary care provider to get your shin lump evaluated a couple of things could be going on here that may or may not need to be treated it would not hurt to get your health care provider is opinion it is possible to bruise a bone especially in areas like the shin where the bone is not well protected by layers of muscle fat and skin it is possible to fracture or chip a bone by whacking it on a hard object too it is also possible with a very bad bruise for blood to collect and form a lump called a hematoma sometimes a health care provider will want to surgically drain or remove a hematoma so that it does not put pressure on a nerve or cause other problems at any rate since you still have a painful lump a month after injuring your shin it is well worth the time to have a health care provider check it out and make sure it is healing properly good luck to you