Hi, thank you for the question. Your sister is having type 1 diabetes mellitus Type 1 diabetes mellitus can happen in children and adolescent, as in your sister’s case. It is a autoimmune disease, which means the body own immune system attacks the pancreas, causing it to lose the ability to produce insulin. Insulin is an important hormone that helps the body cells to use the blood sugar to generate energy.

Therefore, if there is no insulin produced, the body cannot use the blood sugar as energy. It can causes problem in normal growth of a child. Besides that, high blood sugar can cause a lot of problems, such as heart problem, kidney problem, eye problem and foot problem. In family with siblings having type 1 diabetes mellitus, there is an increase risk of getting type 1 diabetes mellitus.

However, the exact cause of type 1 diabetes mellitus is currently unknown yet. It can be due to multiple causes, such as genetics and environmental factors. Patient normally complained of increased thirst, pee a lot, hungry always and unintended weight loss. Your sister needs to get insulin replacement by injections, so that the body cells can use the blood sugar to generate energy.

Currently, there is no cure for type 1 diabetes mellitus. For the time being, as an older brother, i am very happy that you take the effort to understand your sister’s condition. Having a good understanding of the disease can help you care for your sister better. If you are concerned about your health, talk to the healthcare providers to get a health check up done.

They can check your blood glucose using glucometer. The possibility of you getting this condition is very low. Have a good day and continue caring for your younger sister !!!