hematemesis during menstruation

例句：

1. 1. During her menstrual period,she experienced severe hematemesis.
   在她的月经期间，她经历了严重的月经出血。
2. 2.The patient was rushed to the hospital forimmediate treatment of hematemesis.
   患者被紧急送往医院，以治疗严重的月经出血。
3. 3. Hematemesis is acommon symptom in women during their menstrual cycle.
   月经期间，月经出血是女性常见的症状。