The diagnosis of ADHD is not precise (this is true also of most psychiatric diagnoses) – but a common constellation of problems are often found together, and in recent years this has been termed ADHD. Some clinicians consider this is quite common, whilst others are doubtful of its existence in adults. Often it seems not to be recognised in childhood, where a child is viewed just as ‘naughty’ (although in some instances an overdiagnosis of ADHD may occur). It seems reasonable to suppose that a child with ADHD will grow up to be an adult with ADHD. A person who has struggled throughout life with ADHD problems, and the impact of these on their family and social relationships, may very likely also attract a diagnosis of ‘personality disorder.