<s>[INST] I am 23 yr old male 170 lbs. about 5 hrs ago I noticed a baseball size bruise on the inside of my left thigh with a pea size lump in the middle... There is no pain like a normal bruise and I didn t hit it on anything. Do I need to be worried about a bite or would the area be worse by now if it were dangerous? [/INST] Hi, Dear,Good afternoon. Thanks for the query to my Chat Doctor online-clinic. I studied your query in-depth.-In my opinion the painless bruise of baseball size-is mostly due to the groin fungal infection with mild-secondary infection causing lump on inside your groin.--Cause of lump-Possibility of insect bite needs to be ruled out due to the central pea-size lump.-Hope this would resolve your worry-some query. Wellcome again to Chat Doctor. Have a good day. </s>