Symptom #3: Abdominal Pain
Some abdominal pains may be a symptom of a blood clot within an abdominal vein. Such abdominal pains are usually sudden and severe. They may also be accompanied by diarrhea or vomiting.
While abdominal pain is usually associated with conditions like indigestion or other digestive issues, it can also be the result of blood clots.
Abdominal blood clots also called splanchnic venous thrombosis may be caused by problems like undiagnosed cancers within the abdominal organs. In case of cancer, the blood clot can develop when a tumor compresses a vein so that it becomes difficult for blood to flow through. Clots may also be caused by injury or inflammation in a vein.