There is a difference between ovulation injections and ovulation boosters. Including different drugs, different effects, different time of medication and other differences. 1. Drugs are different: ovulation injection commonly used drugs for chorionic gonadotropin; ovulation injection commonly used drugs for urotropin, the role of the two drugs are different. 2. different role: ovulation needle clinically through ultrasound monitoring ovulation, observation found that the diameter of the follicle reached maturity, through the injection of ovulation needle to promote follicle rupture; and promote the ovulation needle is to promote follicle growth and development of the drug. 3. Different medication time: ovulation injection is used when the size of the follicle in the ovary reaches about 18-20mm; ovulation injection in the menstruation or withdrawal of bleeding on the 3rd-5th day, every day or every other day intramuscular injection, according to ultrasound monitoring of the follicle size changes to adjust the use of drugs. Ovulation injection and ovulation promotion injection are both drugs for the treatment of women with abnormal ovulation function, if the condition requires the use of the above two drugs, it is recommended to go to the hospital in a timely manner after the evaluation of a professional doctor to rationalize the use of medication, do not self-medication.