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DVT (deep vein thrombosis)

DVT (deep vein thrombosis) is a blood clot in a vein, usually in the leg. DVT can be dangerous. Get medical help as soon as possible if you think you have DVT.

Dandruff

Dandruff is a common skin condition. It's not harmful and you cannot catch it.

Deafblindness

Deafblindness is a combination of sight and hearing loss that affects a person's ability to communicate, access information and get around.

Dehydration

Dehydration means your body loses more fluids than you take in. If it's not treated, it can get worse and become a serious problem.

Dementia

This guide has information for people with dementia and their families and friends.

Dengue

Dengue, also known as dengue fever, is an infection spread by mosquitoes. It's not usually serious and often gets better on its own. Some people get a more severe type of dengue, but this is rare.

Dental abscess

A dental abscess is a build-up of pus in the teeth or gums caused by an infection. It needs urgent treatment by a dentist. A dental abscess will not go away on its own.

Detached retina (retinal detachment)

A detached retina is when the thin layer at the back of your eye (retina) becomes loose. It needs to be treated quickly to stop it permanently affecting your sight.

Developmental co-ordination disorder (dyspraxia) in children

Developmental co-ordination disorder (DCD), also known as dyspraxia, is a condition affecting physical co-ordination. It causes a child to perform less well than expected in daily activities for their age, and appear to move clumsily.

Developmental dysplasia of the hip

Developmental dysplasia of the hip (DDH) is a condition where the "ball and socket" joint of the hip does not properly form in babies and young children.

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