医生们难以判定她的确切病因。
Doctors found it hard to establish the precise nature of her illness.
经前综合症确切病因尚不清楚,但是情况可能与几个因素有关。
Exactly what causes premenstrual syndrome is unknown, but several factors may contribute to the condition.
然而,英国国家自闭症学会说自闭症的确切病因还不为人知。
However, the National Autistic Society in the UK says that the exact causes of autism were unknown.
目的银屑病是一种常见的慢性炎症性皮肤病,其确切病因尚未完全清楚。
ObjectivePsoriasis is a common chronic inflammatory dermatosis, and its pathogenesis remains unknown.
其确切病因尚不明了,但有证据表明,帕金森病可能与环境和遗传等因素有关。
The cause is unknown, but growing evidence suggests that it may be due to a combination of environmental and genetic factors.
类风湿关节炎被认为是一种人体攻击自身健康细胞的自身免疫性疾病,确切病因尚不清楚。
Rheumatoid arthritis is considered an autoimmune disease, a disease where the body attacks healthy cells. The exact cause is unknown.
目前因确切病因未清,对PCOS多仅限于对症治疗,包括减肥、降雄激素、治疗胰岛素抵抗和促排卵等。
Since the etiology of PCOS is not clear, the present treatment is mainly to reduce body weight, induce ovulation, improve the insulin sensitivity, decrease androgen levels and or so.
建议这句可以这样修改:为寻找一些疾病的确切遗传病因,两个研究小组已分别破解出一些病人的完整基因组。
Two research teams have independently decoded the entire genome of patients to find the exact genetic cause of their diseases.
这样的小毛病迄今为止还没有确切的病因——虽然如此,它还是有一定规律可循:症状往往持续时间相当短。
The ailment has no known cause — though there are a few theories — and usually lasts for a fairly short period of time.
今年7月,粪便样本证实病因是大肠杆菌,但病因菌确切的食物来源,还没有得到确认。
In July, stool samples confirmed E. coli as the cause of illness, though the exact food source of the bacterium was not confirmed.
比如,没有人确切知道,5 -羟色胺系统的功能异常是否是情绪障碍的病因,或者是否只是反映了其他一些更基本功能的异常。
For example, no one knows for sure whether dysfunctions in the serotonin system are a cause of mood disorders, or whether they simply reflect some more fundamental abnormality.
胎膜早破是一重要的产科并发症,但确切的病因及发病机制仍不十分明确。
Premature rupture of fetal membranes is an important obstetrical complication, but its cause and mechanism are still not well-known.
虽然其确切的病因和发病机理尚不十分清楚,但许多研究表明免疫学因素在中枢神经系统炎性脱髓鞘病中起着关键性的作用。
Although the definite etiology and pathogenesis are not very clear up to now, many studies show that the immunological factors play a key role in the demyelinating disease of CNS.
该疾病确切地病因不明,但人们认为可能是内在代谢缺陷所造成的。
The exact cause of cerebellar abiotrophy is not known, but it is thought to be due to an intrinsic metabolic defect.
因为葡萄膜炎大多数并无确切约病因,所以此病较容易复发也不容易断根。
Because the majority of uveitis about the exact cause has not, so the disease more easily relapse not easy to root.
心房颤动是临床上最常见的快速心律失常之一,而大多数的心房颤动在临床上都有确切的病因。
Atrial fibrillation is a common rapid arrhythmia in the clinical setting. However, there are many possible causes in most cases of atrial fibrillation.
慢性胰腺炎发病率不断攀高,但由于其确切的病因和发病机制尚不清楚,给治疗带来较大困难。
The incidence of chronic pancreatitis (CP) is increasing all over the world. However, it is rather difficult to treat it because its etiological factor and pathogenesis are still unclear.
胃肠功能性疾病是临床上常见的消化道疾病,其病理生理复杂,病因及发病机理尚未明确,还没有一个确切有效的治疗方案。
Functional gastrointestinal disease is one of the most common disorders seen in clinical practice with rather complicated pathophysiologic mechanisms and unclear etiopathogenesis.
胃肠功能性疾病是临床上常见的消化道疾病,其病理生理复杂,病因及发病机理尚未明确,还没有一个确切有效的治疗方案。
Functional gastrointestinal disease is one of the most common disorders seen in clinical practice with rather complicated pathophysiologic mechanisms and unclear etiopathogenesis.
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