早期妊娠中毒症-妊娠呕吐很常见。呕吐可见于50～90%的孕妇,根据病情可分为轻、中、重三度。轻度:每天呕吐次数较少,约2～5次,有恶心、食欲下降、便秘等。全身情况好,体温、脉搏、血压正常。中度:每天呕吐10次以内,食欲缺乏体重下降,皮肤干燥,尿量减少,尿酮体阳性。重度:食物不能在体内保持,身体状况进行性恶化,皮肤苍白干燥、巩膜黄染,呕吐物有丙酮味。低热,脉快100～120次/分,尿量减少,尿中出现有形成分,酮体含量增加,血中残余氮增加。上述症状系由于营养缺乏,水钠丢失和水电解质平衡的改变所引起,且可出现神经官能症样变化,其中神经衰弱型占71%,歇斯底里型占10.1%, Early Pregnancy Poisoning - Vomiting in pregnancy is common. Vomiting can be seen in 50 to 90% of pregnant women, according to the disease can be divided into light, medium and heavy three degrees. Mild: vomiting less daily, about 2 to 5 times, nausea, loss of appetite, constipation and so on. The general condition is good, body temperature, pulse, blood pressure is normal. Moderate: vomiting less than 10 times per day, loss of appetite, weight loss, dry skin, decreased urine output, urine ketone body positive. Severe: food can not be maintained in the body, the progressive deterioration of the physical condition, pale dry skin, yellow sclera, vomit acetone taste. Low fever, pulse fast 100 to 120 beats / min, decreased urine output, visible components in urine, increased body ketone content, blood residual nitrogen increased. Symptoms due to nutritional deficiencies, sodium and water loss and water and electrolyte balance caused by changes, and there may be neurosis-like changes, of which 71% neurasthenic type, 10.1% hysteria,