Search results for (2025). Bleeding in the digestive system (GI bleed) . Health A-Z.

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• Vitamin B12 or folate deficiency anaemia

  Read about vitamin B12 or folate deficiency anaemia, which occurs when a lack of vitamin B12 or folate causes the body to produce abnormally large red blood cells.

• Preparing for a stem cell or bone marrow transplant

  Find out how to prepare for a stem cell or bone marrow transplant so your recovery goes well.

• Postnatal depression

  Find out about postnatal depression (PND), including symptoms, treatments, self-care and when to get medical help.

• Septic arthritis

  Find out about septic arthritis, which is a serious type of joint infection that should be treated straight away.

• Complications of type 1 diabetes

  Find out about possible complications of type 1 diabetes, including long-term complications, such as heart disease and problems with your feet, eyes or nerves.

• Autism assessments

  Find out how to get an assessment for autism if you need one and what happens in an autism assessment.

• Skin tags

  Find out about skin tags, including what they look like, when and where to get medical help and how they’re treated.

• Chickenpox

  Find out more about chickenpox, an infection that's spread easily and causes an itchy, spotty rash.

• Bullous pemphigoid

  Find out more about bullous pemphigoid, a rare skin condition that usually starts with an itchy, raised skin rash.

• COVID-19 testing

  Find out about COVID-19 rapid lateral flow tests, including who can get them for free on the NHS, how to do the test, and what your result means.