Thanks for posting your query.
Mobile painful lumps in the lower back are likely to be due to a benign collection of fat cells called lipoma
or paraspinal abscess
. If it becomes infected, it becomes painful.
A detailed examination and investigations like MRI
scan are needed to confirm the cause.
Right now you can start with mild pain killers like ibuprofen
along with a hot fomentation for pain relief.
I hope this answers your query.
Wishing you good health.
Dr. Saurabh Gupta