An NT scan must take place at a particular time in your pregnancy. This is between 11 weeks and 13 weeks plus six days, or when your baby's crown rump length (CRL) is between 45mm (1.8in) and 84mm (3.3in). So it will usually happen during your routine dating scan.
Yes: Crohn's disease can cause mouth sores similar to canker sores (aphthous ulcers). Crohn's disease can affect the digestive tract, anywhere from the mouth to the anus. ...Read more.
Causes. The precise cause of canker sores remains unclear, though researchers suspect that a combination of factors contributes to outbreaks, even in the same person.Possible triggers for canker sores include: 1  A minor injury to your mouth from dental work, overzealous brushing, sports mishaps or an accidental cheek bite. Inflammatory bowel diseases, such as Crohn's disease and ulcerative colitis. 2  Behcet's disease, a rare disorder that causes inflammation throughout the body, including the mouth. 3  A faulty immune system that attacks healthy cells in your mouth instead of pathogens, such as viruses and bacteria.