If there's one thing I wish every new mom heard before leaving the hospital, it's this: a good latch is the foundation of comfortable, successful breastfeeding. When the latch is right, feeding shouldn't hurt (beyond mild tenderness in the first few days), your baby transfers milk efficiently, and your supply builds the way it's supposed to. When the latch is off, everything feels harder—sore nipples, a fussy baby, worry about whether they're getting enough. The good news is that latch is a skill, not a talent. You and your baby can learn it together, and most of the time a few small adjustments make a big difference.
What a Good Latch Looks Like
Before we talk about how to get there, it helps to know what you're aiming for:
- Wide open mouth. Baby's mouth should be open wide—like a yawn—before latching on.
- Lips flanged out. Both lips should be turned outward (like fish lips), not tucked in.
- More areola visible above than below. Baby's chin should be pressed into the breast, with the nose just barely touching or slightly off the breast.
- Rounded cheeks. You should see smooth, full cheeks—not dimpling or sucking in.
- Audible swallowing. After your milk comes in, you'll hear soft "kuh" sounds as baby swallows.
- Comfortable for you. After the initial few seconds of suction, it shouldn't pinch or hurt.
Step-by-Step: Getting the Latch
Here's the technique I walk through with families in my office:
1. Position yourself first. Get comfortable—pillows under your arms, feet supported, baby at breast height. You shouldn't have to hunch over to bring your breast to baby. Bring baby to you.
2. Hold baby close, tummy to tummy. Baby's ear, shoulder, and hip should be in a straight line. Their whole body should face you, not just their head turned to the side.
3. Support your breast. Use a C-hold (thumb on top, fingers underneath) or U-hold to shape your breast. This helps baby get a deeper mouthful.
4. Tickle and wait. Brush your nipple against baby's upper lip or nose. Wait for that big, wide-open mouth. Be patient—it might take a few tries.
5. Bring baby to breast (not breast to baby). When their mouth opens wide, quickly bring them onto the breast, aiming your nipple toward the roof of their mouth. Lead with the chin.
6. Check and adjust. Look for those flanged lips and listen for swallowing. If it pinches, break the suction gently with your finger and try again. It's always okay to re-latch.
Common Latch Mistakes (and Quick Fixes)
Baby latches onto just the nipple. This is the most common issue I see. If baby is only on the nipple tip, it will hurt and they won't transfer milk well. Break suction and try again with a wider gape.
Baby's lips are tucked in. Gently pull the lower lip out with your finger while baby is latched. For the upper lip, a slight adjustment of baby's head angle usually helps.
You're leaning forward. This leads to back pain and a shallow latch. Lean back slightly and let gravity help keep baby close to your body.
Baby keeps slipping off. Make sure baby's body is fully facing you and held snugly. A loose hold means a loose latch.
When the Latch Looks Right but Still Hurts
Sometimes the latch looks textbook but mom is still in pain. In these cases, I look for:
- Tongue tie or lip tie — A restricted frenulum can prevent baby from latching deeply even when positioning is perfect. This is something I evaluate regularly in my practice.
- Thrush — Yeast infections can cause burning, stinging pain that isn't related to latch mechanics.
- Nipple shape variations — Flat or inverted nipples sometimes need extra support in the early days. A nipple shield can be a helpful bridge while baby learns.
If you've tried adjusting positioning and technique and it's still painful after the first week, that's a clear signal to get hands-on help. Pain is information, not something to push through.
The First Few Days Are the Hardest
I tell every new mom: the first 3–5 days of breastfeeding are a learning curve for both of you. Your baby has never eaten before. You've never breastfed this particular baby. It's normal for it to feel awkward and clumsy at first.
What matters is progress, not perfection. If each feeding gets a little easier, a little less painful, a little more rhythmic—you're on the right track.
When to Get Help
Don't wait until you're in tears at every feeding. Reach out if:
- Latching is consistently painful beyond the first week
- Your nipples are cracked, blistered, or bleeding
- Baby is frustrated at the breast and can't seem to stay latched
- You're not seeing enough wet and dirty diapers (fewer than 6 wet diapers per day after day 4)
A single visit with a lactation consultant can often resolve weeks of struggle. Sometimes all it takes is one small adjustment that you can't see on your own.