Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that due to falling of the stairs there has been
injury to the soft tissues along with hard lump seems to be due to
hematoma formation and it occurs due to rupture of blood vessels and accumulation of blood in the soft tissues..
Hematoma is a harmless
tumor like mass formed due to spillage of blood from ruptured blood vessels leading to accumulation of blood into the soft tissues forming a lump..
At times the hematoma gets localized and encapsulated and forms a firm hard lump that can take a long time, say a few months to resolve, but it generally tend to resolve itself..
As in you case also the lump seems to be due to a firm hematoma and you need not to worry as it will resolve gradually..
You should do alternate warm and cool compresses over the lump..
Apply
Heparin gel as it help in faster disintegration of the hematoma..
In case if it worsen
consult a General Surgeon and get evaluated..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.