Hello, thank you for your question whether illegal butt injections can cause blood clots and whether it is safe to massage lumpy injected areas. Yes, your illegal buttock injections could the cause of your blood clots and PEs. I would suggest you consult with your hematologist for a full work-up to include factor 5 leiden deficiency, etc. I have had several patients who were referred to me by their hematologist for removal buttock silicone. After surgery, these patients were able to safely discontinue their blood thinners. In regards to massage silicone lumps and scar tissue, I would NOT suggest massages. I believe in your case, this would only aggravate matters. I believe you have ASIA syndrome. ASIA syndrome is an acronym that stands for Autoimmune/inflammatory Syndrome Induced by Adjuvants. Adjuvants are agents (like silicone) that modify the effect of other agents (like causing scar tissue and pain). Typically, ASIA syndrome presents about 10 years after the injection. Since ASIA syndrome was first described as recognizable medical disease in 2011, most medical doctors do not know ASIA syndrome even exists. I specialize in treating patients with ASIA syndrome and in the removal of silicone from the buttock and subsequent reconstruction of the buttock. Whether or nor your blood clots are caused by your buttock silicone injections, I would strongly suggest you have your buttock silicone removed. I am a lead investigator and founder of the Silicone Removal Institute. Since removing silicone from the buttock is a big procedure, please seek an experienced, board certified plastic surgeon with significant experience in removing silicone from the buttock. Do your research. Make sure your chosen plastic surgeon has performed many buttock silicone removal surgeries and has the before and after pictures to prove it. Carefully examine their before and after pictures and check their reviews on RealSelf. If you cannot find an experienced, buttock silicone removal surgeon in your neighborhood, consider traveling out of state if you must. Sincerely, Dr. Katzen. (“Verified” Plastic Surgeon, Certified by the American Board of Plastic Surgery, Fellow of the International Society of Aesthetic Plastic Surgery, American College of Surgery, and International College of Surgery and member of the American Society of Plastic Surgery, American Academy of Cosmetic Surgery and RealSelf Hall of Fame.)