<s>[INST] Hi my name is Christina. i am 19 years old and i fell down the step at my dads house 1 month ago when we had the first snow. The was very dark and now i have lump follow by a dent on my right buttock from the impact when the last step of the stairs. the pointed part of the step struck me in the same area where i fell. What do i do. i really concerned about it.I also have pain when i touch it. [/INST] HI,Welcome  to HCM.Based on the facts of your query,In My opinion You should Get Surgeon's Opinion,who after due deligence and check up would treat it acccordingly.You seem to suffer from-Resolving Post-traumatic Hematoma with Cellulitis.Delayed recovery indicates the hard edge of the step caused deep trauma at the dent spot.Remedy-Get the X-ray and USG done and rule out any fracture from your doctor.RestAnti-inflammatory x 1 weekAntibiotics if need be as per doctors adviseHot Fomentation to reduce the CellulitisIf no relief,your doctor would assess the lump and would plan for -either a Wide Bore Needle Aspiration or Surgical Drainage and excise the remaining lump mass.This would reduce your confusion and time for caring your 86 yrs old mom.Hope this reply would help youWelcome for any further query in this regardWill appreciate writing your feedback review comments,to help the needy patients like you at HCM.Good Day!!     Dr.Savaskar,Senior Surgical SpecialistM.S.Genl-CVTS </s>