Hi Welcome to healthcaremagic After going through your query I concluded that you got tear in hip flexors few months back which has now healed and having some pain. You are worried about a small bump near the joint/bone like a bubble which is not sore to touch unless harder pressure is applied. Don t worry it may be torn part of muscle which has accumulated at a place. It will gradually resolve. There is no need to worry. Only treatment require at present is analgesic such as ibuprofen whenever you have pain. You can discuss with your treating Doctor about it. Hope your query get answered. If you have any further questions then don t hesitate to writing to us . I will be happy to help you. You can also write to me directly on below link: https://www.bit.ly/askdrsudhirortho Wishing you good health. Take care.