Easy bruising is often noticed early and the diagnosis is usually made by the age of five years. The commonest problems are easy bruising, nose bleeds, heavy periods and gum bleeding. Prolonged bleeding has been reported after shedding of baby teeth and bleeding is of course prolonged after trauma and surgery.
Not all people with GT are affected to the same degree. Some people are severely affected, while others less so and have infrequent bleeding.
Overall, whilst bleeding after trauma or surgery may be severe, problems from spontaneous bleeding in day-to-day life are often mild. Affected women may have problems with excessive bleeding during their period.