<unk>  (), sometimes called dysarithmia, is a disability resulting in difficulty learning or comprehending arithmetic, such as difficulty in understanding numbers, learning how to manipulate numbers, performing mathematical calculations and learning facts in mathematics. It is sometimes informally known as "math dyslexia", though this can be misleading as dyslexia is a different condition from<unk> .<unk>  is associated with dysfunction in the region around the intraparietal sulcus and potentially also the frontal lobe.<unk>  does not reflect a general deficit in cognitive abilities or difficulties with time, measurement, and spatial reasoning. Estimates of the prevalence of<unk>  range between 3 and 6% of the population. In 2015, it was established that 11% of children with<unk>  also have ADHD.<unk>  has also been associated with Turner syndrome and people who have spina bifida. Mathematical disabilities can occur as the result of some types of brain injury, in which case the term acalculia is used instead of<unk>  which is of innate, genetic or developmental origin.
Dyscalculia
Acalculia
Generalized lentiginosis
Penis enlargement
Pattern hair loss
Pearly penile papules
Hyperkatifeia
Hypertrichosis