Heparin-induced thrombocytopenia (HIT) occurs in up to 1% of patients receiving unfractionated heparin. HIT may occur even when very-low-dose heparin (eg, used in flushes to keep IV or arterial lines open) is used. The mechanism is usually immunologic.
The hair loss can seem more extreme if your hair grew much more than normal during pregnancy, or if you have long hair. Most women will return to their usual hair growth cycle within six months, or between 6 and 12 months after birth.
In fact, hair loss can occur six weeks to three months after a stressful event. This kind of hair loss is called telogen effluvium, which can also be caused by infections, major surgery, or having a baby. Think back over the last few months and see if there were any extreme stress events.