I would like to understand the adverse impacts of abortion and artificial contraception on women’s health. Where is there evidence?
Here is where I personally have found evidence that seems relatively robust.
Preterm birth linked with evacuation of the uterus for abortion or miscarriage. There is a systematic review and meta-analysis on this topic, with the reference here: ncbi.nlm.nih.gov/pubmed/26743506
Hormonal contraceptives increase risk of cerebral venous thrombosis. Systematic review and meta-analysis published here: ncbi.nlm.nih.gov/pmc/articles/PMC4313700/
Combined hormonal contraceptives increase risk of venous thromboembolism. Systematic review published here: ncbi.nlm.nih.gov/pubmed/27263039
Another here: ncbi.nlm.nih.gov/pubmed/22568831
Another literature summary here: ncbi.nlm.nih.gov/pubmed/26598309
Progestin-only contraceptives (injection and oral) for venous thromboembolism (moderate evidence). Systematic review cited here: ncbi.nlm.nih.gov/pubmed/27153743
Combined oral contraceptives and the risk of myocardial infarction (when estrogen dose is at least 50 ug): ncbi.nlm.nih.gov/pubmed/26310586
Combined oral contraceptives impair cognitive and emotional function in the female brain
2014 systematic review: ncbi.nlm.nih.gov/pubmed/22568831
2010 systematic review: ncbi.nlm.nih.gov/pubmed/24856205
Some evidence of brain changes:
Though not directly affecting women’s health, oral (and possibly injected) contraceptives are associated with hormones in surface waters. Here’s one novel study that found that water discharges from a wastewater treatment plant increased at the beginning of the semester of a nearby university:
There may be more. I welcome input!