Symptoms of Sarcoma
People with soft tissue sarcomas often have no symptoms. There may be no signs until the lump grows to a large size and can be felt; however, even this may go unnoticed. The main symptoms are:

Pain - the most obvious symptom. Once the tumor affects local tissues, nerves, or muscles, it can be felt as pain in the general area.

Inflammation - the tumor grows and eventually affects the area with inflammation and swelling.

Location specific symptoms - inability to move limbs properly (if the sarcoma is on the arms or legs for example) and other impairments depending on the location.

Specific symptoms may reflect the particular type of sarcoma. For instance, tumors in the gastrointestinal system may bleed, so these sarcomas might produce symptoms like blood in the stool, or a stool that has a black, tarry appearance.