Hello, Thank you for your query. Yes, it is definitely a cause for concern. *how old are you? *how far along in your pregnancy are you? *have you had any Infection during this pregnancy? *do you have any other medical issues or take any medications? Multiple subchorionic bleeds with a previous history of miscarriage increases the risk for placental abruption, miscarriage or premature labor. The heterogenecity of the placenta is associated with adverse events in pregnancy & fetal death. Please talk to your obgyn to have regular follow up and discuss options. Hope this helps. Wish you a safe confinement and good health