<s>[INST] Hi, im a 38 year old female with no health issues apart from a small lump in the groin area as a result of falling off the saddle of my bike and hitting the bar three months ago, i have only just noticed this lump today so i thought id look on line first before going to hassle a doctor at the surgery. Im not overweight so i cant see as though this is fat however it feels hard. [/INST] HI, Welcome with your query to Chat Doctor. Cause of the lump in the groin after fall from bike 3 myths ago-Based on the facts of your query, you seem to suffer from-resolving fibrous from hematoma(hence a hard feel of that lump) after the fall from the saddle of your bike.USG would confirm the nature of this lump. Second opinion from Surgeon would resolve this issue. Hope this reply would help you. Welcome for any further query in this regard Will appreciate writing your feedback review comments, to help the needy patients like you at Chat Doctor. Good Day!!  Chat Doctor.  </s>