 [ Symptoms ] i can feel a lump on my stomach to the left of my bellybutton its not a muscle is it an organ ir could it be cancer [ Disease ] i am sorry to hear you are going through this unfortunately it is not possible to diagnose what this lump might be without doing a physical examination the good news is it is unlikely this lump is a cancer it is possible the lump is a cyst a lipoma non cancerous fatty tumor or an umbilical hernia i urge you to make an appointment to see your primary care provider for an exam this will help set your mind at ease and your provider will be able to recommend a treatment if necessary hope this helps