<s>[INST] I have two hard lumps that appeared in the past few days and one on my gluteal crease. Ive had these marble sized lumps appear before but only one at a time and they just seem to go away. Theyre not painful and the one in the crease of my buttocks is itchy if touched. What coould these and could they be something to worry about? [/INST] Hi, happy to help you on your health concern on part of Chat Doctor! In the present case of lower gluteal swelling or lump, if I were your consulting physician, I would just say you, nothing to worry! Just avoid rubbing or hitting over it; Take caution not to get injured there as this might invite infection. As per your description, it is a benign harmless lesion like sebaceous cyst, common papilloma like or some infective skin conditions; never some serious lesion to worry! If you are still worried, please get examined by a surgeon or get some FNAC like cytological examination or revert to us. Hope you got your answer. Please feel free to write to us if any more queries. Wishing you the best health! </s>