There is a lump on the left lower abdomen, which feels like it is in the intestines. Please

There is a hard mass in the left small abdomen. It may be caused by long-term constipation, which may also be caused by lipoma on the body surface, but it is not ruled out that it is caused by intestinal tumor disease. You still need to go to the hospital for abdominal B-ultrasound examination to confirm the specific cause.