What organ is on the lower left side of the stomach?

The organ located on the lower left side of the abdomen is primarily the descending colon, which is part of the large intestine. Additionally, the left ovary and fallopian tube are found in women, while in men, the left side may also include portions of the bladder and reproductive organs. Other structures, such as the left kidney and pancreas, can also be in proximity, depending on individual anatomy.