Feeding

Painful Latch: Common Causes and What Helps

By Raised Editorial · Published 17 July 2026

Breastfeeding may be natural, but it should never be agonizing. If your toes curl every time your baby latches, here is a clinical guide to identifying the cause and fixing the pain.

There is a persistent, dangerous myth in early motherhood: "Breastfeeding hurts at first, you just have to toughen up your nipples."

This is biologically false. While you may experience 30 to 60 seconds of mild discomfort or a strong "tugging" sensation when the baby first latches (due to the initial stretching of the tissue), breastfeeding should not cause agonizing, toe-curling pain.

If you are experiencing severe pain, bleeding, cracking, or dreading every feed, something is mechanically wrong with the latch. According to clinical lactation standards, here is a troubleshooting guide to the most common causes of a painful latch and how to fix them.

1. The Shallow Latch (The Most Common Culprit)

For breastfeeding to be comfortable, the baby's mouth must bypass the sensitive nipple entirely.

When a baby latches correctly, the nipple is drawn far back into the "comfort zone" of their mouth (the soft palate). If the latch is shallow, the nipple gets pinched between the baby's hard palate and their tongue, causing intense friction, pain, and eventually, bleeding.

• The Signs: Your nipple comes out looking flattened, creased, or shaped like a new tube of lipstick. You feel a sharp pinching sensation during the entire feed.
• The Fix: You must achieve an asymmetrical latch.
  • Aim your nipple at the baby's nose, not their mouth.
  • When they open their mouth wide (like a yawn), bring them onto the breast chin-first.
  • Their chin should be buried deep into your breast, and more of the areola should be visible above their upper lip than below their lower lip.

2. Tongue-Tie or Lip-Tie (Ankyloglossia)

Sometimes, a shallow latch is not a technique issue; it is a structural issue.

A tongue-tie occurs when the thin piece of tissue under the baby's tongue (the frenulum) is too short or tight. This restricts the tongue's movement, preventing the baby from extending it over the lower gum line to draw the breast tissue deep into their mouth.

• The Signs: The baby makes a clicking sound while nursing, slips off the breast constantly, or chews on the nipple. The mother experiences severe pain and nipple damage, and the baby may struggle to gain weight despite feeding constantly.
• The Fix: A pediatrician, pediatric dentist, or ENT specialist must evaluate the baby. If a severe tie is diagnosed, a simple, quick in-office procedure (a frenotomy) can release the tissue, often providing immediate relief for the mother.

3. Vasospasm (Nipple Blanching)

If the pain occurs after the baby unlatches, or between feedings, you may be experiencing a vasospasm.

When the blood vessels in the nipple constrict too tightly, blood flow is cut off. This is often triggered by the sudden temperature change when the baby releases the breast and the wet nipple hits the cold air.

• The Signs: The nipple turns stark white (blanches) immediately after a feed, followed by a burning, throbbing, or shooting pain that can radiate deep into the breast. The color may change to blue or purple before turning pink again.
• The Fix: The primary trigger is cold. Immediately cover your nipple with a warm, dry compress the second the baby unlatches (do not let it air dry). Correcting a shallow latch (which causes physical trauma and exacerbates vasospasms) is also critical.

4. Thrush (Yeast Infection)

Thrush is a fungal infection (Candida) that can develop on your nipples and in the baby's mouth.

• The Signs: You experience "liquid glass" or intense shooting pain during and after feeding. Your nipples may look bright pink, shiny, or flaky. Your baby may have white, cottage-cheese-like patches on the inside of their cheeks or tongue that do not wipe away easily.
• The Fix: Thrush requires medical treatment. Both the mother (antifungal cream for the nipples) and the baby (oral antifungal drops) must be treated simultaneously, or you will continue to pass the infection back and forth.

The Rule of Thumb: Break the Suction

If you latch the baby and it hurts beyond the first 60 seconds, do not tough it out.

Slip a clean pinky finger into the corner of the baby's mouth to break the suction, take them off, and try again. Allowing a baby to feed with a bad latch will quickly lead to tissue damage, which makes subsequent feeds even more painful. If you cannot resolve the pain after adjusting the latch, contact an International Board Certified Lactation Consultant (IBCLC) for immediate intervention.