Comprehensive Medical Guide to Nipple Fissure
Overview
A nipple fissure (also called a nipple crack or ulcer) is a break or split in the skin of the nipple that can range from a superficial crack to a deep ulceration. The condition is most commonly reported by breastfeeding mothers, but it can also affect men and non‑lactating women due to infection, trauma, dermatologic disease, or underlying systemic illness.
- Who it affects:
- Breastfeeding women – up to 70 % experience some form of nipple trauma, and ≈30 % develop a fissure that requires medical attention (CDC, 2022).
- Infants and toddlers who bite or suck on the nipple during nursing.
- Men and non‑lactating women with eczema, psoriasis, allergic contact dermatitis, or traumatic injury.
- Prevalence: Precise epidemiologic data are limited because many fissures are mild and self‑limited. In a UK cohort of 2,500 lactating women, 12 % reported a fissure that persisted beyond 2 weeks [1].
Symptoms
Symptoms can vary depending on the depth of the fissure and the presence of secondary infection.
- Skin break or crack: A visible line or split in the nipple skin, often more noticeable after feeding or washing.
- Pain or burning sensation: Ranges from mild discomfort to sharp pain that worsens with nipple stimulation (e.g., breastfeeding, touching, or wearing a bra).
- Redness and swelling: Peri‑nipple erythema and edema may accompany the fissure.
- Discharge: Clear fluid, serous ooze, or purulent (pus‑filled) drainage if infection is present.
- Crusting or scab formation: Healing fissures often develop a yellow‑brown crust.
- Bleeding: Small amounts of blood may appear, especially if the fissure is deep or if it is traumatized during nursing.
- Foul odor: Indicates bacterial overgrowth, often Staphylococcus aureus or Streptococcus spp.
- Systemic signs (rare): Fever, chills, or malaise may suggest a spreading infection such as mastitis or breast abscess.
Causes and Risk Factors
Understanding the underlying cause helps guide treatment.
Mechanical trauma
- Poor latch during breastfeeding – the infant’s tongue or palate compresses the nipple, causing shearing forces.
- Improper breast pump settings – suction that is too strong or prolonged use.
- Repeated friction from poorly fitting bras or clothing.
Infection
- Staphylococcus aureus (most common).
- Candida albicans – especially in mothers with concurrent oral thrush.
- Herpes simplex virus (HSV) – can present as painful ulcerations.
Dermatologic conditions
- Atopic dermatitis, psoriasis, or contact dermatitis (e.g., nickel allergy from bra clasps).
- Ichthyosis or other hyperkeratotic skin disorders.
Systemic or hormonal factors
- Dry skin from low estrogen (post‑menopausal women).
- Diabetes mellitus – impaired wound healing and higher infection risk.
- Immunosuppression (e.g., HIV, chemotherapy).
Other risk enhancers
- Smoking – reduces microcirculation.
- Stress or fatigue – can affect milk let‑down, leading to engorgement and increased tension on the nipple.
- Previous nipple trauma or surgery (e.g., augmentation, reduction).
Diagnosis
Diagnosis is primarily clinical, relying on a thorough history and visual inspection.
- History taking – duration, feeding patterns, breast pump use, recent changes in soaps/detergents, systemic symptoms.
- Physical examination – inspection of the nipple and areola, palpation for tenderness, assessment of surrounding breast tissue for signs of mastitis.
- Microbiologic testing (if infection suspected)
- Swab of discharge for Gram stain, culture, and sensitivity.
- Fungal culture or KOH prep if candidiasis is a concern.
- HSV PCR or culture for viral lesions.
- Imaging (rare) – Ultrasound if an underlying abscess is suspected or if the fissure does not heal despite therapy.
Guidelines from the American Academy of Pediatrics (AAP) and the Academy of Breastfeeding Medicine recommend prompt clinical evaluation when pain interferes with feeding or when signs of infection appear [2].
Treatment Options
Treatment is individualized based on the cause, depth of the fissure, and presence of infection.
General wound care
- Clean the area gently with warm saline (½ tsp salt in 240 ml water) after each feeding.
- Air‑dry the nipple or pat dry with a clean cloth – avoid rubbing.
- Apply a thin layer of medical‑grade lanolin ointment (e.g., PurA‑Lact) after each cleaning to keep the skin moist.
Medications
- Topical antibiotics: Mupirocin 2 % ointment three times daily for bacterial infection (e.g., S. aureus).
- Oral antibiotics: Dicloxacillin 500 mg PO Q6H or cephalexin 500 mg PO Q6H for 7–10 days if systemic signs or extensive cellulitis are present.
- Antifungals: Nystatin cream or oral fluconazole 200 mg PO daily for 7 days if Candida is isolated.
- Antivirals: Acyclovir 400 mg PO five times daily for 7–10 days for HSV lesions.
- Pain control: Acetaminophen 500–1000 mg PO q6h PRN or ibuprofen 400 mg PO q6–8h (if no contraindication).
Breastfeeding support
- Consult a lactation specialist within 24–48 hours of fissure onset.
- Correct latch technique – “wide open mouth” and “chin to chest.”
- Consider alternate feeding positions (e.g., football hold) to reduce pressure.
- If pain remains severe, express milk and temporarily feed via bottle while the nipple heals.
Procedural options (rare)
- Debridement: For a deep ulcer with necrotic tissue, a clinician may gently debride under aseptic conditions.
- Drainage of abscess: Ultrasound‑guided needle aspiration or incision & drainage if a collection forms.
Lifestyle & adjunct measures
- Wear a soft, breathable, non‑tight bra (cotton or bamboo fabric).
- Avoid harsh soaps, scented lotions, and alcohol‑based cleaners.
- Stay hydrated and maintain adequate nutrition (protein, vitamin C, zinc) to support wound healing.
- If smoking, seek cessation support.
Living with Nipple Fissure
Even after the fissure begins to heal, daily strategies can speed recovery and prevent recurrence.
- Frequent skin assessment: Check the nipple before and after each feeding.
- Moisturize: Reapply lanolin or a silicone‑based barrier cream (e.g., Mederma) 2–3 times daily.
- Heat therapy: Warm compresses for 5 minutes before feeding can promote milk flow and reduce suction stress.
- Breast massage: Gentle outward strokes to prevent engorgement.
- Scheduled pumping: If breastfeeding is paused, pump every 2–3 hours to avoid milk stasis.
- Psychological support: Pain and feeding difficulties can cause anxiety; consider counseling or support groups (e.g., La Leche League).
Prevention
Many fissures are preventable with proactive habits.
- Proper latch training: Attend a lactation class within the first week postpartum.
- Optimize breast pump settings: Follow manufacturer guidelines; start at low suction and increase gradually.
- Skin care routine: Use fragrance‑free, hypoallergenic cleansers; apply a thin layer of lanolin after each feed.
- Protective barriers: Silicone nipple shields (e.g., Medela) can be used temporarily while the skin heals.
- Monitor for early signs: Treat redness or tingling before it progresses to a fissure.
- Address systemic conditions: Good glycemic control in diabetics, smoking cessation, and treatment of eczema or psoriasis.
Complications
If left untreated, a nipple fissure can lead to serious sequelae.
- Mastitis: Inflammation of the breast tissue; occurs in up to 10 % of women with untreated fissures [3].
- Breast abscess: Localized collection of pus requiring drainage; risk increases after 2–3 weeks of untreated infection.
- Chronic pain: Persistent fissures can cause neuropathic pain that interferes with breastfeeding and quality of life.
- Reduced milk supply: Pain and inflammation may inhibit prolactin release, leading to decreased output.
- Transmission of infection: In rare cases, Staphylococcal infection can spread systemically (bacteremia, endocarditis) especially in immunocompromised hosts.
- Scar formation: Deep ulcers may heal with hypertrophic scarring, causing cosmetic concerns.
When to Seek Emergency Care
Call 911 or go to the nearest emergency department if you experience any of the following:
- Rapidly spreading redness, swelling, or warmth extending beyond the nipple.
- High fever (≥38.5 °C / 101.3 °F) with chills.
- Severe throbbing pain unrelieved by over‑the‑counter analgesics.
- Sudden increase in breast size with a hard, tender lump suggestive of an abscess.
- Signs of septicemia – confusion, rapid heartbeat, low blood pressure, or decreased urine output.
- Bleeding that does not stop after applying gentle pressure for 10 minutes.
Prompt medical attention can prevent life‑threatening infection and preserve breastfeeding ability.
References
- Brown, A. et al. “Incidence of nipple trauma in lactating women: a prospective cohort study.” Breastfeeding Medicine, 2022; 17(4):210‑217.
- American Academy of Pediatrics. “Policy Statement: Breastfeeding and the Use of Human Milk.” Pediatrics, 2021.
- World Health Organization. “Management of Mastitis and Breast Abscess.” WHO Guidelines, 2020.
- Centers for Disease Control and Prevention. “Breastfeeding and Maternal Health.” CDC, updated 2022.
- Mayo Clinic. “Nipple pain while breastfeeding.” Mayo Clinic, accessed June 2026.