subcutaneous pocket hematoma

例句：

1. 1. He was hit by a car and sustained a subcutaneous pocket hematoma.
   他被车撞了，导致皮下血肿。
2. 2. The doctor advised him to stay in bed and not move until the swelling subsided.
   医生建议他躺在床上，直到肿胀消退。
3. 3. After the surgery, she had to spend several days in the hospital due to a subcutaneous pocket hematoma.
   手术后，她不得不在医院待了几天，因为有一个皮下血肿。