# Contraindications and Problems in Breastfeeding

> Breastfeeding contraindications and problems for NEET-PG Paediatrics: absolute and relative contraindications, drugs in lactation, mastitis and engorgement.

- Canonical URL: https://prepelephant.com/topics/neet-pg/paediatrics/contraindications-and-problems-in-breastfeeding
- Exam / course: NEET-PG · Subject: Paediatrics
- Publisher: PrepElephant (https://prepelephant.com) — Prepared and reviewed by the PrepElephant Academic Review Team
- First published: 2026-10-14
- Last updated: 2026-10-14
- Reference basis: WHO Infant and Young Child Feeding Guidelines; National Guidelines for HIV Care and Treatment; IAP Textbook of Pediatrics
- How to cite: "Contraindications and Problems in Breastfeeding", PrepElephant, https://prepelephant.com/topics/neet-pg/paediatrics/contraindications-and-problems-in-breastfeeding

## Direct answer

Breastfeeding has few absolute contraindications, the clearest being classic galactosaemia in the infant, which requires a galactose-free feed. Maternal HIV is no longer a bar when the mother is on suppressed antiretroviral therapy. Most maternal drugs are compatible, and common problems such as mastitis and engorgement are managed while feeding continues.

## What you must remember

- **Classic galactosaemia:** infants with GALT deficiency cannot metabolise galactose, so breast milk and lactose-containing feeds must be avoided.
- **Maternal HIV:** under current WHO and NACO guidance, mothers on antiretroviral therapy are advised to breastfeed exclusively for 6 months and continue for at least 12 months; the older AFASS criteria for replacement feeding are no longer the default.
- **Active tuberculosis:** the mother may breastfeed after starting effective treatment, usually about two weeks, and the infant needs assessment and isoniazid preventive therapy.
- **Radioactive iodine:** breastfeeding is interrupted after I-131 therapy, because iodine concentrates in breast tissue, for a period set by the nuclear medicine protocol.
- **Drugs of abuse:** cocaine and heavy alcohol use are reasons to avoid breastfeeding, and many cytotoxic chemotherapy agents need a specific plan.
- **Mastitis:** inflammation of breast tissue, most often from Staphylococcus aureus, treated with antibiotics while feeding or expressing continues.
- **Engorgement:** excessive breast fullness from poor drainage, relieved by frequent feeding, expression and warmth before feeds.

## Managing mastitis without stopping feeds

A breastfeeding mother of a three-week-old has a red, hot, tender area in one breast and feels unwell with fever. Management keeps milk moving while treating the infection, as set out below.

1. **Recognise mastitis:** look for localised redness, pain, warmth and sometimes fever, often with a blocked duct or cracked nipple.
2. **Keep the infant feeding:** continue breastfeeding or express from the affected breast, because milk stasis worsens the infection.
3. **Clear the blockage:** feed frequently, massage gently, and apply warmth before feeds to help milk drain.
4. **Start antibiotics:** give a staphylococcal-active antibiotic such as flucloxacillin or dicloxacillin, or per the local guideline, for moderate or systemic illness.
5. **Check for abscess:** a fluctuant lump, or no improvement after 48 hours, needs ultrasound and drainage while feeding from the other breast continues.
6. **Review the response:** persistent fever or spreading redness calls for culture and escalation of care.

## Where the exam tries to catch you

Stems usually test whether a condition is a true contraindication or a reason to adjust care.

- **Trap:** stopping breastfeeding for mastitis. — **Correct:** continue feeding from the affected breast, because the milk is safe for the infant and emptying helps resolution.
- **Trap:** stopping breastfeeding for most maternal medicines. — **Correct:** most drugs, including paracetamol and many antibiotics, are compatible, so check a lactation drug reference for each.
- **Trap:** treating active tuberculosis as an absolute stop. — **Correct:** breastfeeding continues after about two weeks of effective therapy, with the infant assessed and given isoniazid preventive therapy.
- **Trap:** assuming HIV always forbids breastfeeding. — **Correct:** current WHO and NACO guidance allows breastfeeding for mothers on suppressed antiretroviral therapy, so decide with the national guideline.

## Frequently asked questions

### Which infant condition is an absolute contraindication to breast milk?

Classic galactosaemia, caused by GALT deficiency, is the clearest absolute contraindication to breast milk in the infant. These infants cannot metabolise galactose and need a galactose-free feed, guided by a metabolic team.

### Can a mother with active tuberculosis breastfeed?

A mother with active pulmonary tuberculosis can breastfeed once she has started effective therapy, usually after about two weeks. The infant is assessed for tuberculosis and given isoniazid preventive therapy as per national guidance.

### Is mastitis a reason to stop breastfeeding?

Mastitis is not a reason to stop breastfeeding from the affected breast. Continued feeding or expression keeps milk moving, reduces stasis and helps resolution, while antibiotics are given as per the guideline.

### How should engorgement be managed?

Engorgement is managed by feeding on demand, expressing when the breast is too full for the baby to latch, and applying warmth before feeds. Stopping breastfeeding worsens engorgement and should be avoided.

### Are most maternal medicines unsafe during breastfeeding?

No. Most common maternal medicines, including paracetamol and many antibiotics, are compatible with breastfeeding. Drugs such as radioactive iodine, cocaine and some chemotherapy agents need a specific plan before feeding continues.