1.Is hemangioma common? Hemangioma is the most common benign tumor in infants, with an incidence of about 4-12%, usually more common in girls, about 3-5 times that of boys. The incidence of preterm low birth weight babies (birth weight less than 1Kg) is as high as 25%, while the incidence of twins is also relatively high. 2.What causes hemangioma? There is a 10% family history of hemangioma, but it is not a genetic disease. There is no definite food or drug that can lead to hemangioma, and there is also no correlation with the mother’s behavior during pregnancy. Recent studies have shown that hemangioma may be associated with advanced maternal age, multiple pregnancies, placenta praevia and pre-eclampsia, and that chorionic villus sampling during pregnancy is one of the high-risk factors for hemangioma development. 3.When do hemangiomas appear? About 1/3 of hemangiomas in children can be detected at birth. The average time of appearance of hemangiomas is usually 7-15 days, and deep hemangiomas may not be detected until 3 to 4 months of age. 4.Where do hemangiomas tend to occur? 60% occur in the head and neck, 25% in the trunk, and 15% in the extremities. The vast majority (80%) of hemangiomas occur in a single location, but a few can occur in multiple locations. Although most hemangiomas occur on the surface of the body, a small percentage occur in the liver, gastrointestinal tract, and even in the brain. 5.What are the complications of hemangioma? Complications of hemangioma include ulceration leading to bleeding or infection, impairment of vital organ function, disfigurement, severe anemia, and, more rarely, heart failure. Ulceration usually occurs in 5-10% of hemangiomas, especially around the lips, anus and genitals. Local debridement and antibiotics are effective in treating the ulcers, and if there is bleeding, the wound can be compressed to stop the bleeding. Ulcers usually heal within a few weeks and do not recur. However, some may leave scars. If the hemangioma affects breathing, hearing, vision or diet, you need to see a doctor immediately. 6.What kind of hemangioma does my baby have? Many parents are very concerned about which kind of hemangioma their baby has. In the past, hemangiomas were classified into capillary hemangioma, strawberry hemangioma, cavernous hemangioma, trapezoid hemangioma and mixed hemangioma based on the morphology of the lesion, which did not reflect the nature of the lesion and had little significance for treatment. They classified them as vascular malformations. This classification is a guideline for treatment. 7.Is it useful to apply timolol eye drops? Are the side effects significant? How to apply it? Timolol eye drops is a very economical and effective drug for the treatment of hemangioma, more so for hemangioma with bright red surface color. The side effects of the eye drops are minimal. Some children may experience molting, or even breaking or bleeding. If the hemangioma breaks or bleeds, please stop the bleeding by pressing with sterile cotton swabs, disinfect with Androflux solution, apply Bactrim ointment, and keep the wound dry for healing. The method of application is roughly: put drops of eye drops on cotton ball or cotton pad, put the cotton ball evenly on the hemangioma site and fix it with adhesive tape for 10-15 minutes each time, 4 times a day. 8.How many times should I inject local sclerosing agent (polyglactin)? After the injection treatment, the doctor can decide whether to perform local injection treatment again according to each follow-up consultation. 9.Can I have vaccination during treatment? Yes, you can take vaccination. 10.Is there anything I should pay attention to in terms of diet during hemangioma treatment? There is no special contraindication. 11.Does the injection treatment have any effect on growth and development? Injections basically have no effect on growth and development. 12.Does hemangioma of the liver need to be treated? How to treat? Hepatic hemangioma is a benign tumor of the liver, with cavernous hemangioma being the most common, followed by hepatic hemangioendothelial cell tumor. Most small hepatic hemangiomas have no clinical symptoms and can be observed and followed up. If there are more obvious symptoms, such as compression of adjacent organs such as gastrointestinal tract, causing abdominal distension, abdominal pain, belching, loss of appetite and malignant vomiting, etc.; a few hepatic hemangiomas may be combined with coagulation dysfunction, such as depletion of coagulation factors and platelets, interventional (transcatheter atherosclerotic embolization) treatment can be chosen. 13.What is K-M syndrome? K-M syndrome is a rare but critical disease with a prevalence of 1%-2% in infants and children with giant hemangioma and thrombocytopenia syndrome. K-M syndrome can easily cause extensive bleeding in the child, which can seriously endanger the child’s life and health, and requires active treatment. 14.How is K-M syndrome treated? Hormonal therapy can effectively control the reduction of hemangioma, while interventional surgery can significantly reduce the size of hemangioma.