Severe junctional epidermolysis bullosa (EB)

This webpage explains about severe junctional EB and how it can be managed.

What is severe junctional EB?

EB is the name for a group of rare inherited skin disorders that cause the skin to become very fragile and blister at the slightest knock or bump. Severe junctional EB is a specific type of EB.

What causes severe junctional EB?

Severe junctional EB is a genetic condition. It is caused by a faulty gene (gene mutation) that affects a protein called Laminin 332. This protein helps to hold the skin layers together.

In severe junctional EB, this protein is faulty or reduced, so the skin layers separate easily and form blisters.

Severe junctional EB is recessively inherited- this means the faulty gene has come from both parents who are just ‘carriers’ but don’t have EB themselves.

On rare occasions the change to the gene can also happen by chance when neither parent is affected. This is called a ‘de novo’ mutation.

How is severe junctional EB diagnosed?

EB is diagnosed by taking a tiny sample of skin (a skin biopsy) and examining it under a microscope.

Blood samples are also taken from the baby and parents to look for the specific gene changes.

What are the complications of severe junctional EB?

Severe junctional EB causes blistering from birth or sometimes shortly after. Blistering is usually seen on the bottom, elbows and umbilical cord. The nails/nail beds may also look inflamed. Blisters can develop and enlarge quickly resulting in further skin damage.

The skin is very fragile and wounds are often non-healing, hard to manage, and very painful. Even when the recommended treatments and dressings are used, wounds may not heal.

Fingernails are often missing or very thickened. This can cause infection if not managed.

The same protein that is missing in the skin, also affects the mucosal linings of the gastrointestinal and respiratory tract. This can make the mouth sore and make feeding difficult.

It can also make absorbing feeds very difficult and means babies with this type of EB struggle to put on weight.

The airway can become inflamed and damaged, which can cause breathing difficulties. Medication and nebulisers can be given to help.

Is there a cure for severe junctional EB?

There's currently no cure for severe junctional EB. Treatment aims to relieve symptoms and prevent complications developing, such as infection.

How does severe junctional EB affect life expectancy?

This type of EB significantly shortens life. Babies born with this type of EB unfortunately will die within the first two years of life.

The EB and symptom management team will work alongside you to provide the best care for your baby. You will also have a named doctor at your local hospital- we will work closely with them to manage symptoms and make your baby as comfortable as possible.

If I have another child, will they also have severe junctional EB?

This will vary and depend on whether you and your partner are carriers of the faulty gene.

You may be offered a referral to a genetic specialist for counselling and tests if you or your partner are known to be a carrier of the faulty gene.

How to manage severe junctional EB?

It’s important to pop blisters to stop them from getting bigger.

  • Use a piece of soft gauze to gently compress the blister from the side to increase tension.
  • Use a small hypodermic sterile needle (or small clean sharp scissors) to pierce the blister.
  • Slide the needle through the blister to create an entry and exit point. If the blister is large, you may need to do this more the once.
  • Withdraw the needle and gently press the blister with the gauze to remove the fluid.
  • Dispose of the needle into a sharps bin.
  • You don’t need to use a dressing if the top of the blister is still in place.
  • Use a dressing is there is skin loss or if the area looks particularly sore.

In severe junctional EB, wounds look very wet and are often in places that are difficult to dress, like the neck, ears and the back of the head.

  • Applying topical gentamycin to severe junctional EB wounds can help with the healing.
  • Apply dressings to open wounds to encourage healing and to prevent wounds from sticking to clothing.
  • Use a non-sting medical adhesive spray to remove dressings if they become stuck to the skin. This will help lift any dressings without causing pain or further damage.
  • Keeping the skin clean will help prevent infections.
  • Infected wounds can be treated with topical wound gels, creams, and ointments. However, if your child has a fever, you should contact the GP- they may need antibiotics to help treat the infection. Please ask the GP to take a wound swab before prescribing antibiotics.

If you are concerned about your child’s wounds, please contact the EB nursing team to discuss the best treatment options.

Severe junctional EB can be very painful and babies can have chronic, non-healing wounds in difficult to dress places.

From birth, babies with this type of EB are referred to the palliative care team. Together with the EB team they will work to relieve symptoms and ensure your baby is as comfortable as possible.

If your baby has a lot of very fragile skin, you can nurse them on a small soft pillow/ mattress.

To lift your baby from the mattress, apply a ‘roll and lift’ technique:

  1. Roll your baby onto their side.
  2. Place one hand behind their head and one hand under their bottom.
  3. Allow them to roll back onto your flat hands.
  4. Lift.

As you become confident in lifting your baby you may find you don’t need the pillow/ mattress.

To reduce the risk of skin blistering or tearing we also recommend:

  • Try to avoid picking babies and toddlers up by their armpits.
  • Pad areas of the body prone to knocks and friction with dressings when you baby becomes more mobile.
  • Apply dressing to open wounds to help reduce pain and potential infection.

If your baby has a lot of damaged skin, we recommend delaying bathing until healing has taken place. This is because bathing can be painful and it’s difficult to protect against further skin damage when all the dressings are removed at once.

Instead, use Octenisan Wash Mitts to cleanse when the skin is sore. Use Octenilin irrigation fluid to help clean the skin. Your EB nurse can also recommend dressings or creams that can help cleanse or keep bacteria off the skin until a bath is possible.

Tips for bathing:

  • Pre-cut replacement dressings before the bath so they’re ready to put on.
  • Give prescribed pain relief 30 minutes before dressing change to allow the medication to work.
  • Add a mild antiseptic such as Octenisan® or Dermol 500 to the water instead of commercial baby products. Your EB team can prescribe this.
  • Milton or salt bathes can also be beneficial to help clean your baby’s skin. Please contact your EB team to discuss this before starting.
  • Use a towelling baby seat rather than a plastic one if it’s difficult to hold your baby in the bath.
  • If your baby has a lot of dressings, sometimes it’s easier to bathe them with their dressings on, then change them after the bath.
  • Pat skin dry with a soft towel rather than rubbing.

Initially dress your baby in a soft cotton baby grow that fastens at the front. They can wear this inside out to stop the seams from rubbing and causing blisters. Watch out for fasteners that may rub.

Try to dress your baby in softer, seamless clothes made of materials like cotton or bamboo.

Your child’s GP can also prescribe specialist clothes that can help keep dressings in place.

  • Try to avoid commercial baby wipes as these may cause damage to the nappy area.
  • Cleanse with 50/50 ointment or Emollin® emollient spray. Water can sting blisters and sores.
  • Wipe poo/ wee away gently away.
  • Pop blisters, leaving the top of the blister on.
  • Apply a layer of barrier cream such as Proshield® Plus or Bepanthen, to any blistered areas and any areas that the nappy may rub.
  • Cover any open wounds with a dressing such as Intrasite® Conformable. You may also need to line the edges of the nappy with a soft material such as Conti® SuperSoft (available on prescription) to prevent rubbing.

Blisters in the mouth and oesophagus can make feeding very painful and difficult.

Reflux is very common in babies with severe junctional EB. This means that your baby may vomit after feeding. Medications can be prescribed to help with this.

If your baby is struggling with feeding and weight gain, please speak to your EB team for further advice.

Tips for breastfeeding:

  • Protect your baby’s face with a layer of emollient to reduce any friction from feeding.
  • You can also apply emollient to the area around your nipple for further protection.

Tips for bottle feeding:

  • A special teat like a Medela special needs feeder can be helpful, as it has a longer, slimmer teat made of ultra-soft silicone.
  • You can apply a teething gel to the bottle teat or directly to the mouth before feeding to help ease pain. Gelclair® (a specialist gel) can also be used around or inside the mouth to help reduces pain.

Your child’s EB dietitian can advise on appropriate soft foods for weaning and supplements to make sure your child can meet their nutritional needs.

Constipation is a common problem with all types of EB. Blistering and soreness around the bottom can make it uncomfortable for your child to poo, and pain medicines and iron supplements can also cause constipation.

If you child is constipated please speak with your child’s EB team who will be able to advise on medicine to help them poo or make pooing more comfortable.

Missing and thickened nails is very common in baby’s with severe junctional EB.

  • Keep nails short and smooth by trimming nails regularly with gentle rounded scissors or baby nail clippers.
  • You can also file your baby’s nails to prevent them from scratching and causing blisters on other areas of skin.
  • Wearing soft seamless mittens can help prevent further damage on the body from sharp nails.
  • Thickened nails and inflamed nail beds can cause infection. Look out for signs of redness, swelling, pus or increased pain around the nail.

It is common in severe junctional EB for nails to fall off. If this happens keep the area clean. Cover the area with a small dressing or a wound gel and a mitten if you can.

Dry eyes caused by a reduced tear film can sometimes cause blistering on the surface of the eyes which can be painful.

An ophthalmologist (eye specialist) can prescribe eye drops or ointment to help keep the eyes moist and reduce the chance of blistering.

Please speak to your child’s EB team if you think your child has dry or sore eyes so they can advise you further.

Contact us

If you are at all concerned about any skin changes, please contact your EB team as soon as possible.

Where can I get further support?

DEBRA and Cure EB are the national charities that support individuals and families affected by EB.

They provide information, practical help and professional advice, and fund research into the condition. To find out more please visit the DEBRA website and the Cure EB website.

Compiled by:
Epidermolysis bullosa team
Last review date:
August 2025
Ref:
0825CWT0009