Marijuana - Pregnancy & Breastfeeding
/Marijuana use by mothers while pregnant (prenatal) has been linked with:
Fetal growth and neurodevelopmental impairment
Low birth rate
Premature birth
Greater risk of stillbirth
Birth defects
Increased risk for miscarriage
Altered responses to visual stimuli, increased trembling, and a high-pitched cry
Detrimental effects on foetal development. [1]
As prenatally exposed children age, they may experience:
Developmental and hyperactivity disorders
Gaps in problem-solving skills, memory, and the ability to remain attentive.
Decreased motor development at 1 year of age
Childhood attention problems and lower scores on problem-solving measures
Childhood cancer
Increased likelihood of marijuana use as a young adult even when other factors that influence drug use are considered.
Moderate concentrations of THC used by mothers after delivery (postnatal) can:
Find its way into breast milk potentially affecting the quality and quantity of milk produced
Affect brain development
Have long-lasting effects on the child, including increasing stress responsivity and abnormal patterns of social interactions.
Miscellaneous
Breathing second-hand marijuana smoke may also increase the chances for developmental problems in the baby. [2]
Reproductive toxicity in early gestation has been found to affect spermatogenesis, which is the process of the formation of male gamete including meiosis and formation of sperm cells.
Sources
[1] Volkow ND, Compton WM, Wargo EM. The risks of marijuana use during pregnancy. JAMA. 2017;317(2):129-130. See the studies below.
[2] Trends in Self-reported and Biochemically Tested Marijuana Use Among Pregnant Females in California From 2009-2016; http://cdn.cnn.com/cnn/2017/images/12/22/pot.during.pregnancy.jld170046.pdf
See also:
https://www.cbsnews.com/news/more-pregnant-women-using-marijuana-study-finds/
http://chicago.cbslocal.com/2017/12/27/marijuana-use-by-pregnant-women/
Brown QL, Sarvet AL, Shmulewitz D, Martins SS, Wall MM, Hasin DS. Trends in marijuana use among pregnant and nonpregnant reproductive-aged women,2002-2014.JAMA. 2017;317(2):207-209.
Salas -Wright CP, Vaughn MG, Ugalde J, Todic J. Substance use and teen pregnancy in the United States. Addict Behav. 2015;45:218-225.
Volkow ND, Compton WM, Wargo EM. The risks of marijuana use during pregnancy. JAMA. 2017;317(2):129-130.
Ko JY, Farr SL, Tong VT, Creanga AA, Callaghan WM. Prevalence and patterns of marijuana use among pregnant and nonpregnant women of reproductive age. Am J Obstet Gynecol. 2015;213(2):201.e1-201.e10.
ElSohly MA, Mehmedic Z, Foster S, Gon C, Chandra S, Church JC. Changes in cannabis potency over the last 2 decades (1995-2014). Biol Psychiatry. 2016; 79(7):613-619.
The American Medical Association has warned marijuana use may be linked with low birth weight, premature birth, behavioral and other problems in young children.