Raynaud's is a fairly rare disorder of the blood vessels supplying the skin. During a Raynaud's attack, the blood vessels narrow, limiting blood circulation to affected areas. It makes parts of your body (usually fingers, toes, nose and ears) feel numb and cool in cold temperatures or under stress.
PPROM is associated with 30-40% of preterm deliveries and is the leading identifiable cause of preterm delivery. PPROM complicates 3% of all pregnancies and occurs in approximately 150,000 pregnancies yearly in the United States.
Placental abruption is the premature separation of a placenta from its implantation site in the uterus. Within the placenta are many blood vessels that allow the transfer of nutrients to the fetus from the mother.If the placenta begins to detach during pregnancy, there is bleeding from these vessels.lacental abruption is the premature separation of a placenta from its implantation site in the uterus. Within the placenta are many blood vessels that allow the transfer of nutrients to the fetus from the mother.