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Such small swellings are mostly lipomas
in that region, or can be a neurofibroma
Both of these lumps are innocuous and do not need treatment.
Keep a not of it's size if it increases or becomes painful then you need to get examined by a local physician.
It can not be uterus
because uterus an intra pelvic organ in without pregnant state and does not feel that high.
Wish you a great health!