Do fibroids cause wrong positive result in blood pregnancy tests?

Fibroids do not typically cause false positive results in blood pregnancy tests. Pregnancy tests, whether blood or urine, detect the hormone human chorionic gonadotropin (hCG), which is produced during pregnancy. While fibroids can cause other symptoms and complications in pregnancy, they do not interfere with the production or detection of hCG. Thus, if a blood pregnancy test is positive, it usually indicates an actual pregnancy.