as per your explanation of lumps they look like lipomas lipoma are collection of capsulated fat cells that form a lump generally multiple in Number and hand is a common site for it, they are benign( non cancerous ) and unless it is disturbing you are any cosmetic problems you don’t need to do anything if you want to get it removed you can contact a general surgeon and it can be done under local anaesthetic if you have any more question relating to it feel free to get in touch regards Dr Raza Ali