Any trauma can lead to a hematoma. Vaginal hematoma can be caused by intercourse.

hematoma above eyebrow

Yes, a hematoma can become an abscess. There are several types of hematoma, and a few possibilities as to what kind of abscess can develop. The type of hematoma and the circumstances that drive it to abscess will determine what kind of abscess.

The chorionic membrane is the outer sac which surrounds the developing fetus

periorbital hematoma is 1 black eye, bilateral is 2 black eyes