<unk>  are those circumstances, conditions, and substances that increase the risk of<unk> . Some risks are modifiable and can be changed. Other risks cannot be modified and can't be changed. Risks can be firmly tied to<unk> s and others are still under investigation. In addition, there are those circumstances and treatments that have not been found effective in preventing<unk> . When a woman keeps having<unk> s, infertility is present. * Anatomical defect in the mother * Amniocentesis * Chorionic villus sampling * Age >30 * Smoking and exposure tobacco smoke * Obesity * Diabetes * Thyroid problems * Alcohol use * Chromosomal abnormalities * Infectious diseases * Radiation exposure * Endocrine * Genetic and chromosome abnormalities * Autosomal trisomy * Monosomy X (45, X) * Triploidy * Structural abnormality of the chromosome * Double or triple trisomy * Uterine structural abnormalities * Uterine fibroids * Cervical abnormalities * Hormonal abnormalities * Reproductive tract infection * Tissue rejection * Autoimmune disorder * Coeliac disease * Lupus * Antiphospholipid antibody syndrome * Anti-thyroid autoantibodies * Placenta abnormality * Previous<unk>  * Eating disorders bulimia nervosa and anorexia nervosa * Hyperemesis gravidarum * Illicit or recreational drugs * Caffeine * Thyroid disorders * Food poisoning * Salmonella * Listeriosis * Toxoplasmosis * Some surgeries and medications * Trauma * Chemotherapy * Polycystic ovary syndrome (PCOS) * Hypothyroidism * Luteal phase defect * Mycoplasma genitalium infection * Rubella (German measles) * Cytomegalovirus * Bacterial vaginosis * Sexually transmitted infections HIV, chlamydia, gonorrhoea and syphilis * Malaria * Chemicals * DDT * Lead * Formaldehyde * Arsenic * Benzene * Ethylene oxide * Working conditions * Night shift work * >40-hour work week * Lack of accommodation for strenuous working conditions * Psychological stress
Miscarriage risks
risks of Postpartum infections
risks of Obstructed labour
Newborn transport
Infectobesity
Vaccine hesitancy
risks of Peritonitis
risks of Refeeding syndrome