The most common cause of finger joint pain during pregnancy is calcium deficiency. During pregnancy, the demand for calcium increases due to the growth and development of the fetus, so it must be replenished in a timely manner. The most common cause of finger joint pain during pregnancy is calcium deficiency. If the pain in the joints does not improve, it is necessary to actively go to the hospital for systematic examination, need to check some blood routine, blood sedimentation, C-reactive protein, anti-O, rheumatoid factor and renal function, to rule out the possibility of infection, rheumatoid arthritis, gouty arthritis.