Health Conditions

Nocturnal enuresis

Bedwetting (nocturnal enuresis) can beworrying and frustrating, but it's common for children to accidentally wet the bed during the night. The problem usually resolves in time.

Non-Hodgkin lymphoma

Non-Hodgkin lymphoma is an uncommon cancer that develops in the lymphatic system, which is a network of vessels and glands spread throughout your body.

Non-steroidal anti-inflammatory drugs

Non-steroidal anti-inflammatory drugs (NSAIDs) are medications widely used to relieve pain, reduce inflammation, and bring down a high temperature (fever).

Noonan syndrome

Noonan syndrome is a genetic disorder that can cause a wide range of distinctive features and health problems.

Nose and sinus cancer

Nasal and sinus cancer affects the nasal cavity (thespace behind your nose) and the sinuses (small, air-filled cavities inside your nose, cheekbones and forehead).

Nosebleed

Nosebleeds can be frightening, but they aren't usually a sign of anything serious andcanoften be treated at home.

Nummular eczema

Discoid eczema, also known as nummular or discoid dermatitis, is a long-term skin condition that causesskin to become itchy, reddened, swollen and cracked incircular or oval patche…

Obesity

The term 'obese' describes a person who's very overweight, with a lot of body fat. It's a common problem around the world that's estimated to affect around one in every four adults…

Occupational therapy

Occupational therapy providessupport to people whose health prevents them doing the activities that matter to them.

OCD (obsessive compulsive disorder)

Ocular cancer

B etween 500 and 600cases of eye cancer (ocular cancer) are diagnosed in the UK each year.

Ocular cancer

Oesophageal cancer

Oesophageal cancer is a type of cancer affecting the oesophagus (gullet) the long tube that carries food from the throat to the stomach.

Onychomycosis

Many peopledevelop afungal nail infection at some point in their life. It's not usually serious, but can be unpleasantand difficult to treat.

Oral cancer

Mouth cancer, also known as oral cancer, is where a tumour develops in the lining of the mouth. It may beon the surface of the tongue, the insides of the cheeks, the roof of the mo…

Oral thrush in adults

Oral thrush is a fungal infectionof the mouth.It is not contagious andis usually successfully treated with antifungal medication.

Oral thrush in babies

Oral thrush in babies and young children is a fungal infection in the mouth that's usually harmless and easily treatable.

Orf

Orf is a viral skin diseasethat can be spread to humans by handling infected sheep and goats.

Orthodontics

Orthodontic treatmentis used to improve the appearance, position and function of crooked or abnormally arranged teeth.

Osler-Weber-Rendu syndrome

Hereditary haemorrhagic telangiectasia (HHT) is an inherited genetic disorder that affects the blood vessels. It's sometimes spelt hereditary hemorrhagic telangiectasia and is also…

Osteoarthritis

Osteoarthritis is a condition that causes joints to become painful and stiff. It's the most common type of Arthritis in the UK.

Osteomyelitis

Osteomyelitis is the medical termfor a bone infection, usually caused by bacteria.

Osteopathy

Osteopathy is a way of detecting, treating and preventing health problems by moving, stretching and massaging a person's muscles and joints.

Osteophyte (bone spur)

Osteophytes are bony lumps(bone spurs) that growon the bones of the spine oraround the joints.