Had A Lump On Abdomen (for Weeks And Not Painful),

Had a lump on abdomen (for weeks and not painful), under right rib cage, which later got a bruise on it. I did not hit it on anything that I'm aware of. This bruise lasted for close to 2 weeks and is still there. Yesterday, I noticed 2 or 3 more such bruises and with lumps underneath them. The bruising seems to be coming from the inside.