症状持续时间 meaning in Chinese

duration of symptoms

History includes duration of symptoms ; relation of symptoms to menses and pregnancy ; presence and type of pain , discharge , and skin changes ; use of drugs , including hormone therapy ; personal and family history of breast cancer ; and date and results of last mammogram
病史询问包括症状持续时间，症状与月经和妊娠的关系，是否疼痛、有排泄物、皮肤变化及类型，用药（包括激素）情况、个人及家庭乳腺癌史、最后一次乳房拍片时间及结果等。