
Some of the medical conditions that can lead to the formation of blood clots are heart ailments and diseases, infections, cancer, autoimmune disorders (lupus or rheumatoid arthritis), bleeding disorders (hemophilia), inflammatory bowel disease (ulcerative colitis and Crohn's disease), history of
varicose veins or other vascular diseases, pregnancy, high blood pressure (hypertension) and stroke.
Aside from these, blood clots can also come as a result of other factors.