[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-563986-105":3,"detail-sidebar-cat-1-en-105":81,"doc-detail-563986-en":126},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","choosing-your-medela-breast-shield-size-sizing-guidelines","Choosing your Medela breast shield size - Sizing guidelines","","Guide for mothers and healthcare professionals on selecting the correct Medela breast shield size to optimize milk flow and pumping comfort. Explains how to measure nipple diameter after birth (excluding areola), then determine the recommended shield size by adding 4 mm. Provides a step-by-step fitting and test process using vacuum comfort, with clear signs of shields that are too small or too large. Includes when to reassess size, safety notes, and advice to consult a lactation professional if unsure.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/template/","Template",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/template/general/","General",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/template/choosing-your-medela-breast-shield-size-sizing-guidelines/563986/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/choosing-your-medela-breast-shield-size-sizing-guidelines/563986.png","ImageObject",442,249,{"name":42,"@type":43},"Melati","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-19","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",5,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"How do you measure nipple diameter for Medela breast shield sizing?","Question",{"text":63,"@type":64},"Measure the diameter of your nipple at the base across the middle in millimeters, and do not include the areola. Measure only after birth because nipple size may change.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How do you calculate the recommended Medela breast shield size?",{"text":68,"@type":64},"Add 4 mm to your measured nipple diameter to get the recommended breast shield size. This is a starting point and should be reevaluated after a few minutes of pumping.",{"name":70,"@type":61,"acceptedAnswer":71},"What signs indicate the breast shield size is too small or too large?",{"text":72,"@type":64},"Too small: the nipple rubs along the tunnel side. Too large: excessive areola and the nipple are pulled into the tunnel. Adjust by trying a larger or smaller size respectively.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},563986,1792008534,{"code":4,"msg":82,"data":83},"success",[84,89,94,99,104,109,114,119,123],{"id":85,"doc_module":22,"doc_module_name":25,"category_name":86,"show_sort_weight":87,"slug":88},11,"Presentations",90,"presentations",{"id":90,"doc_module":22,"doc_module_name":25,"category_name":91,"show_sort_weight":92,"slug":93},12,"Resumes",80,"resumes",{"id":95,"doc_module":22,"doc_module_name":25,"category_name":96,"show_sort_weight":97,"slug":98},14,"Invoices",70,"invoices",{"id":100,"doc_module":22,"doc_module_name":25,"category_name":101,"show_sort_weight":102,"slug":103},15,"Posters",60,"posters",{"id":105,"doc_module":22,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},16,"Social Media",50,"social-media",{"id":110,"doc_module":22,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},17,"Forms",40,"forms",{"id":115,"doc_module":22,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},18,"Letters",30,"letters",{"id":120,"doc_module":22,"doc_module_name":25,"category_name":121,"show_sort_weight":55,"slug":122},21,"Paper Templates","papers-templates",{"id":124,"doc_module":22,"doc_module_name":25,"category_name":29,"show_sort_weight":4,"slug":125},158,"general-158",{"code":4,"msg":82,"data":127},{"doc_id":79,"user_id":128,"nickname":42,"user_avatar":129,"doc_module":22,"category_id":124,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":22,"language":135,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":12,"update_tm":139,"read_time":4},962085570644,"https://ap-avatar.wpscdn.com/davatar_994ba38a5ba835b3df7d355c54d3ed8d","A series for mothersand healthcare professionals  \nMedela Knowledge  \nChoosing your Medela breast shield size  \nMake sure to use the right breast shield size. It is an essential component of effective pumping, helping to optimise milk flow. Availability of sizes may vary between different Medela breast shield ranges.  \nUnderstanding Medela’s breast shield sizing  \nPumping should not hurt. For maximum comfort and pumping efficiency, Medela offers different breast shield sizes. This guide is a starting point to help determine your optimal size based on your nipple diameter.  \nMeasure only after birth as your nipple size may change.  \nMeasure nipple diameter (Ø mm)  \nNipple  \n|  | \u003Cbr>Measure\u003Cbr>|\n| --- | --- |\n\nStep 1  \nUsing a ruler or measuring tape measure the diameter of your nipple at base (across middle) in millimeters (mm) . Do not include areola.  \n24 27 30 36  \nStep 2  \nBased on your measurement, determine your Medela breast shield size by adding 4 mm. Example: If your nipple size measures 16 mm in diameter, the recommended Medela breast shield size is 21 mm.  \nThis is only a starting point and should be reevaluated after a few minutes of pumping.  \nStep 3  \nTest your breast shield size  \n• Start with the breast shield that came with your pump, or the size determined by measuring.  \n• Center the nipple and gently hold the breast shield against your breast.  \n• Adjust for Maximum Comfort Vacuum to achieve optimum suction level.  \n• Refer to the images below while pumping in the expression phase (after the stimulation phase) .  \ncorrect fit  \nAreola Nipple  \n• The nipple is centered and moves freely.  \ntoo small  \nNipple  \n• The nipple rubs along the side of the tunnel.  \n• Try a larger size.  \nDid you know?  \n• You may need a different size per breast.  \n• Your breast shield size will depend on your breast tissue and skin elasticity.  \n• Your breast shield size could change over the duration of your pumping experience.  \n• When you apply vacuum pressure, your nipple size could change.  \n• Pressing the breast shield too hard could block milk ducts.  \nWatch our fitting animation at [www.medela.com/fittingguide](www.medela.com/fittingguide)  \ntoo large  \nAreola Nipple  \n• The nipple and excessive areola are pulled into the tunnel.  \n• Try a smaller size.  \nReasons to try a new size  \n• Does your nipple rub the tunnel sides to the point of causing discomfort?  \n• Do you see excessive areola being pulled into the tunnel?  \n• Do you see any redness?  \n• Is your nipple or areola turning white?  \n• Do you feel unexpressed milk after pumping?  \nIf you answered «YES» to any of these questions, consider trying a new size by following the measuring instructions above. If you are still unsure that you selected the correct size, see a lactation consultant or breastfeeding specialist.  \nMedela wordmark and logo are registered in the U.S. Patent and Trademark Office. Science of Care is a trademark of Medela.  \n88 E 0424 © 2024 Medela","cbCaitUh80vZJHp6","https://ap.wps.com/l/cbCaitUh80vZJHp6","pdf",1510128,"English","# Choosing your Medela breast shield size\n## Understanding breast shield sizing\n## Measure nipple diameter\n## Determine shield size\n## Test your breast shield size\n## Reasons to try a new size","[{\"question\":\"How do you measure nipple diameter for Medela breast shield sizing?\",\"answer\":\"Measure the diameter of your nipple at the base across the middle in millimeters, and do not include the areola. Measure only after birth because nipple size may change.\"},{\"question\":\"How do you calculate the recommended Medela breast shield size?\",\"answer\":\"Add 4 mm to your measured nipple diameter to get the recommended breast shield size. This is a starting point and should be reevaluated after a few minutes of pumping.\"},{\"question\":\"What signs indicate the breast shield size is too small or too large?\",\"answer\":\"Too small: the nipple rubs along the tunnel side. Too large: excessive areola and the nipple are pulled into the tunnel. Adjust by trying a larger or smaller size respectively.\"}]","Choosing your Medela breast shield size - Sizing guidelines | PDF",1791839690]