<prompt> What is the best time to operate cleft lip?Immediately after birth1 to 3 months3 months to 6 months6 months to 1 year  <response>: Ans. is c i.e., 3 months to 6 months Timing of repair of cleft lipo According to CSDT-Follow the Rule of Ten i.e. Surgery is done after 10 wks of age weight 10 lb 4.5 kg hemoglobin 10gdlo According to Schwartz - at 3 to 6 months of ageo According to Sabiston - at 3 months of ageo According to Bailey - between 4 to 6 months of age 