1 Objective:To study the clinical value of curettement for uterus placenta remnants guided by B ultrasound.

2 Tonsillectomy and curettement of adenoid are the effective way to treat children OSRD.

3 Conclusion:The curettement guided by B ultrasound is accurate and safe, and can be universally used in clinic.

4 Conclusion: The therapeutic effects of avascular necrosis of femoral head treated by core focus curettement and implantation of autogenous periosteum and bone granules through trochanter is obvious.

5 Scratch - cards and membership cards making easy - to - curettement, the local card printing and membership card making, special circumstances.