Type 1 diabetes
Diabetes is a lifelong condition that causes a person's blood sugar (glucose) level to become too high.
The hormone insulin, produced by the pancreas, is responsible for controlling the amount of glucose in the blood.
There are two main types of diabetes:
Typical symptoms of type 1 diabetes are:
The symptoms of type 1 diabetes usually develop very quickly in young people(over a few days or weeks). In adults, the symptoms often take longer to develop (a few months).
Your body tries to reduce blood glucose levels by getting rid of the excess glucose in your urine.
It's very important for diabetes to be diagnosed as soon as possible, because it will get progressively worse if left untreated.
Read about how type 1 diabetes is diagnosed.
Type 1 diabetes is an autoimmune condition, which means your immune system attacks healthy body tissue by mistake. In this case, it attacks the cells in your pancreas.
Your damaged pancreas is then unable to produce insulin. So, glucose cannot be moved out of your bloodstream and into your cells.
Type 1 diabetes is often inherited (runs in families), so the autoimmune reaction may be genetic.
It's not known exactly what triggers the immune system toattack the pancreas, but some researchers have suggested it may be a viral infection.
If you have a close relative such as a parent, brother or sister with type 1 diabetes, you have about a 6% chance of also developing the condition. The risk for people who don't have a close relative with type 1 diabetes is just under 0.5%.
Diabetes can't be cured. Treatment aims to keep your blood glucose levels as normal as possible and control your symptoms, to prevent health problems developing later in life.
If you're diagnosed with diabetes, you'll be referred to a diabetes care team for specialist treatment and monitoring.
As your body can't produce insulin, you'll need regular insulin injections to keep your glucose levels normal. There are alternatives to insulin injections, but they're only suitable for a small number of patients.
Read about treating type 1 diabetes .
Diabetes can cause serious long-term health problems. It's the most common cause of vision loss and blindness in people of working age.
Everyone with diabetes aged 12 or over should be invited to have their eyes screened once a year for diabetic retinopathy.
Diabetes is the reason for many cases of kidney failure and lower limb amputation.
Type 1 diabetes is a chronic condition in which the pancreas produces little or no insulin. Insulin is a hormone needed to allow sugar (glucose) to enter cells to produce energy.
The symptoms of type 1 diabetes can develop very quickly (over a few days or weeks), particularly in children. In older adults, the symptoms can often take longer to develop (a few months).
It's important for diabetes to be diagnosed early so treatment can be started as soon as possible. If you experience the symptoms of diabetes , visit your GP as soon as possible. They'll ask about your symptoms and may request blood and urine tests.
If you have type 1 diabetes, you'll probably need insulin injections. Treatment for diabetes aims to keep your blood glucose levels as normal as possible and to control your symptoms.
If diabetes isn't treated, it can lead to a number of different health problems. High glucose levels can damage blood vessels, nerves and organs. Even a mildly raised glucose level that doesn'tcause any symptoms can have damaging effects in the long term.
If you have type 1 diabetes, you'll need to look after your health very carefully. You have to start eating a healthy balanced diet, exercise regularly, quit smoking, limit your alcohol, etc.
Type 1 diabetes occurs when the body is unable to produce insulin. Insulin is a hormone that is needed to control the amount of sugar (glucose) in your blood. Type 1 diabetes is often inherited (runs in families), so the autoimmune reaction may also be genetic.
Chandler Bennett was diagnosed with type 1 diabetes in October 2004. She maintains a positive attitude to life and has learned to manage her condition.
Ivy Ashworth-Crees, 59, talks about how much better her life is since her double kidney and pancreas transplant.
Nurse consultant in diabetes, Grace Vanterpool MBE, talks about her work supporting people with diabetes and raising awareness of the condition.
Cricket star Wasim Akrams glittering career included dealing with numerous injuries, clearing his name after match-fixing allegations and coping with type 1 diabetes.