Transient lingual papillitis  are painful, hypertrophic, red and white lingual papillae on the tongue. Cause
Transient lingual papillitis can affect males and females as early as 3 years of age. In many cases, the cause is unknown. Some dental professionals believe the inflammation is due to chronic irritation from teeth, fillings, or dental appliances. Stress, poor nutrition, smoking, and alcohol use may also be initiating factors. == References ==
This procedure greatly decreases the rate of miscarriage for women with this anomaly. Prevalence
The prevalence of uterine malformation is estimated to be 6.7% in the general population, slightly higher (7.3%) in the infertility population, and significantly higher in a population of women with a history of recurrent miscarriages (16%). See also
Uterus didelphys
Uterus § Other animals – where some malformations in humans are "normal"

References
External links
BBC NEWS - Triplets for woman with two wombs