We normally do not do the endometrial biopsy prior to infertility treatment. If there is a past history of tuberculosis it will be necessary to exclude this infection in the uterus before starting the treatment. The endometrial tissue is sent for culture in the laboratory which takes at least three weeks. It is also sent for histology. If tubercular infection is detected immediate treatment is started with appropriate antibiotics. This treatment may last from three to six months. Only after the infection has cleared up the infertility treatment could be started.