The World Health Organization (WHO) outlines five criteria for ideal painless childbirth: effective pain relief; no autonomic nerve block (avoiding hypotension); no side effects on mother or baby; no motor nerve block; and no impact on labor progress.
Lower Anesthetic Dose Than Cesarean Section
Professor Ma Yanyan, director of the Obstetrics Center at Tsinghua University’s Yuquan Hospital, notes painless childbirth has two types: drug-based analgesia (e.g., nitrous oxide inhalation, intramuscular analgesics, epidural analgesia) and non-drug methods (physical pain relief without anesthesia).
“Cesarean sections use 0.5% local anesthetics, while painless childbirth uses only 0.125%,” says Hu Shuangfei, director of anesthesiology at Zhejiang Provincial People’s Hospital. The tiny dose injected into the spinal canal is barely absorbed into the bloodstream, with negligible transfer to the fetus via the placenta. Studies show severe pain releases catecholamines, harming mother and fetus by affecting the baby’s blood and oxygen supply. Thus, painless childbirth not only avoids fetal harm but reduces hypoxia risk.
Requires Vaginal Delivery Eligibility, No Anesthesia Contraindications
Most women are suitable for painless childbirth, especially pain-sensitive first-time mothers with intense contractions, says Wang Shouping, director of anesthesiology at the Third Affiliated Hospital of Guangzhou Medical University. Mothers remain awake and may even walk during labor. Li Xiaoqiong, a member of Jiangsu’s Maternal and Child Health Association, adds research shows painless childbirth does not increase risks of rheumatism or chronic back pain post-delivery.
Side effects like hypotension, nausea, headaches, itching, allergies, or local anesthetic toxicity are rare. However, it’s unsuitable for those with obstetric emergencies, back injuries/infections, spinal deformities/surgeries, prenatal bleeding, shock, coagulation issues, or vaginal delivery contraindications. Eligibility must be assessed by professional obstetric and anesthetic teams.
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