Search Medical Conditions

Search medical conditions A-Z 

Meckel's diverticulum

Meckel’s diverticulum is one of the most common congenital digestive system disorders – congenital means that the disorder was present at birth. When your child’s small intestine was developing, a small pouch formed consisting of tissue from elsewhere in the body. Usually the pouch – also known as Meckel’s diverticulum – is formed from tissue similar to that found in the pancreas or stomach.

Medication overuse headache

Medication overuse headache (MOH) develops and gets worse with frequent use of any medication treatment for headache or migraine. It is also known as ‘rebound headache’. This information sheet from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of medication overuse headache and where to get help.


Meningitis is an infection that affects the meninges – the tissue covering the brain and spinal cord. This information sheet from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of meningitis and where to get help.

Metopic craniosynostosis

Metopic craniosynostosis is a type of non-syndromic craniosynostosis that occurs when the metopic suture fuses before birth. This page from Great Ormond Street Hospital (GOSH) explains the causes, symptoms and treatment of metopic craniosynostosis (also known as trigonocephaly) and where to get help.


Microtia is the medical word to describe a small or absent ear. If you have microtia, you will have had it from birth. It is treated at Great Ormond Street Hospital (GOSH) with cosmetic procedures.