People choose to use donor sperm for a variety of reasons. In some couples, the male partner is sterile and can't provide a sperm sample for 宫内人工授精 or 体外受精(IVF). Single women and lesbian couples may take advantage of donor sperm to help them achieve the family they desire. 在其他情况下, couples may seek a sperm donor to avoid passing on a genetic disease or disorder that is carried by the male partner.