Conditions

Costochondritis is inflammation where your ribs join the bone in the middle of your chest (breastbone). It can cause sharp chest pain, especially when moving or breathing. It usually gets better on its own over time.

Cradle cap is a harmless skin condition that's common in babies. It usually goes away on its own within a few months, but there are things you can try to make it better.

Craniosynostosis is a rare condition where a baby's skull does not grow properly and their head becomes an unusual shape. It's usually treated with surgery.

Creutzfeldt-Jakob disease (CJD) is a rare and fatal condition that affects the brain. It causes brain damage that worsens rapidly over time.

Crohn's disease is a long-term condition where part of your gut becomes inflamed. It cannot currently be cured, but there are treatments that can help prevent or manage the symptoms.

Croup is a common childhood illness that causes a barking cough, hoarse voice, and breathing difficulty due to swelling of the upper airway.

Cushing's syndrome is a rare condition caused by having too much of a hormone called cortisol in your body. You're more likely to get it if you take high doses of steroid medicines for a long time.

Most cuts and grazes can be treated at home and will start to heal in a few days. But some wounds may need to be treated by a medical professional if there's a risk of infection or the cut is serious.

Cyclical vomiting syndrome is a rare condition that causes severe episodes of feeling sick (nausea) and being sick (vomiting). Avoiding things that trigger it and taking medicines can help manage the symptoms.

Cyclospora is an infection that causes diarrhoea. It's not found in the UK, but there's a risk of getting it while travelling in some parts of the world.