<s>[INST] my 7 year-old daughter has a soft lump on the upper left side of her head. She sometimes complain of headache and a sharp pain when she touches it. She had a bump probably 2 weeks ago but it was just recently that I noticed the lump on her head. Should I be worried about this? Please give me some insight. [/INST] Hello! Welcome to HCM.This lump can be dermoid or sebaceous cyst or less likely lipoma.These are all benign swellings.Infection in it causes inflammation & so is the pain.Many similar patients come to my clinic, I advise them X-ray skull lateral view to know if any intracranial extension is there.If there is no intracranial extension, then "excision biopsy" is done i.e. swelling is removed under local anaesthesia & sent for histopathological examination.Consult your doctor for control of inflammation with medicines first.Hope this helps.Wish you healthy life.Thanks.Regards. </s>