Toxoplasma gondii antibody only IGg positive usually has no effect on pregnancy. Toxoplasma gondii antibody only IGg positive indicates that the patient has been infected with Toxoplasma gondii in the past, but has cleared the pathogen and produced corresponding antibodies in the body, and has a certain degree of resistance to Toxoplasma gondii infection, so Toxoplasma gondii antibody IGg positive generally has no effect on pregnancy. Patients should take good protection during pregnancy, try not to contact cats and cat feces, take pets for regular vaccination, try not to feed raw meat to pets, and at the same time, should not consume unclean food or contact with unclean water themselves to prevent re-triggering the infection. If pregnant women are pregnant, regularly check whether toxoplasmosis infection occurs, if there is any abnormality, it is recommended to go to the hospital in a timely manner, after a clear diagnosis, and actively cooperate with the doctor for treatment.