The degree of pain in the lower abdomen of a twenty-day pregnancy abortion is related to physical fitness, tolerance level, emotions, etc. If the physical fitness is poor, the tolerance level is low, accompanied by negative emotions, the degree of pain in the lower abdomen will also be large. 1. Individual physique: manifested as low pain threshold, strong reaction to pain stimulation, may abortion slight contraction stimulation can cause strong pain. 2. Low tolerance: women with low pain tolerance usually experience more intense pain than normal under the same stimulus, and a slight pain stimulus during abortion may also cause intense pain. 3. Negative emotions: emotions can change the patient’s response to pain, negative emotions can make the feeling of pain intensify, miscarriage nervousness, fear, anxiety will make the feeling of pain aggravated. If a woman has a miscarriage on the twentieth day of pregnancy, she should maintain a positive and optimistic attitude, pay attention to rest, and carry out treatment and care under the guidance of the doctor.