Last update: March 30, 2019


Very Low Risk for breastfeeding

Not risky for breastfeeding or infant.

X-rays, CT scans and other X radiations, such as mammography that are done to a mother do not affect the human milk or breastfeeding (HSE 2015). X rays used neither remain in the body nor are excreted in the milk.
The X radiation does not alter Prolactin levels.

The various contrasts used for these scans (whether Iodine or not) are compatible with breastfeeding because they are biologically inert, undergo a very rapid body clearance without iodine released particles and not excreted in the milk. Furthermore, it cannot be orally absorbed by the infant.
You can consult one by one of them, by searching on a particular name.

After a radiological examination, even with iodinated contrast, it is not necessary to transiently withheld nursing (ACR 2018 p99, Cova 2014, Quintana 2014, Sachs 2013, Tremblay 2012, Wang 2012, Chen 2008, Newman 2007, Webb 2005, Nielsen 1987).
You may search for Mammography under its proprietary name.

Avoid unnecessary testing (as they use radiation emissions).

A number of dye materials (iodine based or not) used for diagnosis imaging procedures (x-Ray, CAT scan, MRI) are compatible with breastfeeding since they are inert, metabolize rapidly without leaving free iodine and are not or very little absorbed by the gastrointestinal tract.

Look after diverse dyeing material being used.

See below the information of these related products:

See below the information of these related groups:

Suggestions made at e-lactancia are done by APILAM´s pediatricians and pharmacists, and are based on updated scientific publications.
It is not intended to replace the relationship you have with your doctor but to compound it.

Jose Maria Paricio, Founder & President of APILAM/e-Lactancia

Your contribution is essential for this service to continue to exist. We need the generosity of people like you who believe in the benefits of breastfeeding.

Thank you for helping to protect and promote breastfeeding.

José María Paricio, founder of e-lactancia.


X-Ray belongs to this group or family:


  1. ACR-American College of Radiology Committee on Drugs and Contrast Media. ACR Manual on Contrast Media v10.3 2018 Abstract Full text (link to original source) Full text (in our servers)
  2. HSE - United Kingdom Health and Safety Executive. Working safely with ionising radiation. Guidelines for expectant or breastfeeding mothers. Leaflet. 2015 Full text (link to original source) Full text (in our servers)
  3. Tirada N, Dreizin D, Khati NJ, Akin EA, Zeman RK. Imaging Pregnant and Lactating Patients. Radiographics. 2015 Abstract
  4. Downes J, Rauk PN, Vanheest AE. Occupational hazards for pregnant or lactating women in the orthopaedic operating room. J Am Acad Orthop Surg. 2014 Abstract
  5. Quintana Rodríguez I. Uso de contrastes radiológicos en la mujer lactante y en niños.. CbSERAM nº 8/14 – Agosto 2014 Abstract Full text (link to original source) Full text (in our servers)
  6. Cova MA, Stacul F, Quaranta R, Guastalla P, Salvatori G, Banderali G, Fonda C, David V, Gregori M, Zuppa AA, Davanzo R. Radiological contrast media in the breastfeeding woman: a position paper of the Italian Society of Radiology (SIRM), the Italian Society of Paediatrics (SIP), the Italian Society of Neonatology (SIN) and the Task Force on Breastfeeding, Ministry of Health, Italy. Eur Radiol. 2014 Abstract
  7. Sachs HC; Committee On Drugs. The transfer of drugs and therapeutics into human breast milk: an update on selected topics. Pediatrics. 2013 Sep;132(3):e796-809. Abstract Full text (link to original source) Full text (in our servers)
  8. Tremblay E, Thérasse E, Thomassin-Naggara I, Trop I. Quality initiatives: guidelines for use of medical imaging during pregnancy and lactation. Radiographics. 2012 Abstract Full text (link to original source) Full text (in our servers)
  9. Wang PI, Chong ST, Kielar AZ, Kelly AM, Knoepp UD, Mazza MB, Goodsitt MM. Imaging of pregnant and lactating patients: part 1, evidence-based review and recommendations. AJR Am J Roentgenol. 2012 Abstract Full text (link to original source) Full text (in our servers)
  10. Goodman TR, Amurao M. Medical imaging radiation safety for the female patient: rationale and implementation. Radiographics. 2012 Abstract Full text (link to original source) Full text (in our servers)
  11. Saraç F, Tütüncüoğlu P, Ozgen AG, Saygili F, Yilmaz C, Bilgen I, Memiş A. Prolactin levels and examination with breast ultrasound or mammography. Adv Ther. 2008 Abstract
  12. Chen MM, Coakley FV, Kaimal A, Laros RK Jr. Guidelines for computed tomography and magnetic resonance imaging use during pregnancy and lactation. Obstet Gynecol. 2008 Abstract
  13. Newman J. Breastfeeding and radiologic procedures. Can Fam Physician. 2007 Abstract Full text (link to original source) Full text (in our servers)
  14. Webb JA, Thomsen HS, Morcos SK; Members of Contrast Media Safety Committee of European Society of Urogenital Radiology (ESUR). The use of iodinated and gadolinium contrast media during pregnancy and lactation. Eur Radiol. 2005 Abstract
  15. Kubik-Huch RA, Gottstein-Aalame NM, Frenzel T, Seifert B, Puchert E, Wittek S, Debatin JF. Gadopentetate dimeglumine excretion into human breast milk during lactation. Radiology. 2000 Abstract
  16. Swinford AE, Adler DD, Garver KA. Mammographic appearance of the breasts during pregnancy and lactation: false assumptions. Acad Radiol. 1998 Abstract
  17. Rofsky NM, Weinreb JC, Litt AW. Quantitative analysis of gadopentetate dimeglumine excreted in breast milk. J Magn Reson Imaging. 1993 Abstract
  18. Nielsen ST, Matheson I, Rasmussen JN, Skinnemoen K, Andrew E, Hafsahl G. Excretion of iohexol and metrizoate in human breast milk. Acta Radiol. 1987 Abstract
  19. Ilett KF, Hackett LP, Paterson JW, McCormick CC. Excretion of metrizamide in milk. Br J Radiol. 1981 Abstract

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e-lactancia is a resource recommended by La Liga de la Leche de México from Mexico

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