Diabetes is one of the most common health conditions we encounter when assessing prospective foster carers and adopters. It is also one of the most misunderstood, both by applicants who worry it will automatically count against them, and occasionally by those who underestimate how much its management matters in the assessment process.
The short answer is that having diabetes does not disqualify you from fostering or adopting. Many people with diabetes go on to be approved without issue. But the medical assessment does look carefully at how well the condition is controlled, and for good reason. This post explains what we look at, why it matters, and what it means for your application.
Not All Diabetes Is the Same
It is worth briefly distinguishing between the main types, as they carry different considerations in an assessment context.
Type 1 diabetes is an autoimmune condition in which the body produces no insulin at all. It requires insulin therapy to survive and, by its nature, involves more day-to-day management and a greater risk of blood sugar fluctuations.
Type 2 diabetes is far more common and typically develops due to a combination of genetics and lifestyle factors. It may be managed through diet alone, oral medications, injectable medications, insulin, or a combination of these. The management requirements and risks vary significantly depending on the treatment involved.
There is also a range of other less common forms, including gestational diabetes but for the purposes of this article we will focus on Type 1 and Type 2 as these are the ones most commonly seen in fostering and adoption assessments.
The Long View: How Well Is Diabetes Controlled Over Time?
The cornerstone of any diabetes assessment is the HbA1c, a blood test that reflects average blood sugar control over roughly the previous three months. This is one of the most important pieces of information a medical adviser will consider because it gives a reliable picture of how well managed the condition is in practice, not just on a good day.
Persistently elevated HbA1c levels indicate that blood sugar is running too high on a sustained basis. Over time, this causes damage to blood vessels and nerves throughout the body, leading to a well-recognised set of long-term complications that are directly relevant to an assessment of someone's capacity to care for a child.
These complications include:
- Cardiovascular disease. Poorly controlled diabetes significantly raises the risk of heart attack and stroke. These are serious events that can cause sudden incapacity, long-term disability, or death, all of which have obvious implications for the long-term stability of a placement.
- Diabetic nephropathy (kidney disease). Sustained high blood sugar damages the small blood vessels in the kidneys, which can progress over years to kidney failure requiring dialysis or transplantation. Advanced kidney disease is associated with significant fatigue, frequent medical appointments, and reduced quality of life.
- Diabetic retinopathy (eye disease). This is the leading cause of preventable blindness in working-age adults in the UK. Regular eye screening is recommended precisely because progression can be silent until vision loss becomes significant.
- Peripheral neuropathy. Nerve damage, particularly in the feet and legs, causes pain, numbness, and loss of sensation. In severe cases it can contribute to foot ulcers, infections, and even amputation. It can also significantly affect mobility and day-to-day functioning.
- Autonomic neuropathy. Less commonly discussed but important, this involves damage to the nerves controlling automatic body functions. It can affect digestion, bladder function, heart rate regulation, and the body's ability to recognise and respond to low blood sugar, which we will come to shortly.
When a medical adviser reviews someone with diabetes, these complications, and the risk of developing them, are a central part of the assessment. Someone with a well-controlled HbA1c, no evidence of complications, and good engagement with their diabetes care team presents a very different picture to someone with persistently elevated levels, established complications, and gaps in monitoring.
The Short-Term Risk: Hypoglycaemia and the Potential for Incapacity
Separate to the long-term complications of poorly controlled diabetes, there is an important short-term risk that medical advisers must consider carefully, particularly for those on insulin or certain other medications.
Hypoglycaemia, commonly known as a hypo, occurs when blood sugar drops too low. This can happen when insulin or certain oral medications are not adequately balanced with food intake, physical activity, or other factors. In its mild form, a hypo causes shakiness, sweating, confusion, and difficulty concentrating. In its more severe form, it can cause loss of consciousness, seizures, and a complete inability to respond or act.
This is the crux of the concern in a fostering or adoption context. A carer who experiences a severe hypo while alone with a child, particularly a young child, is temporarily incapacitated and unable to respond to that child's needs or to an emergency. This is not a theoretical risk, it is a well-documented one, and it is why the medical adviser will look closely at the frequency and severity of hypoglycaemic episodes, not just the overall HbA1c.
The risk of hypos is not the same for everyone with diabetes. Those managing their condition through diet and lifestyle alone face essentially no risk of hypoglycaemia. Those on metformin, one of the most commonly prescribed medications for Type 2 diabetes, also face a low risk. However, sulfonylureas, a class of oral medication that stimulates insulin production, can potentially cause hypoglycaemia, as can insulin therapy in both
Type 1 and Type 2 diabetes.
For those on insulin in particular, the question is not simply whether hypos occur, but how often, how severe they are, and critically, whether the person has good awareness of the early warning signs. Hypoglycaemia unawareness, a condition in which the body's warning signals are blunted, often as a result of repeated hypos or autonomic neuropathy, significantly raises the risk of a severe episode without prior warning. This is a factor that a medical adviser will take very seriously.
Modern insulin regimens, continuous glucose monitoring (CGM), and closed-loop insulin delivery systems have transformed the ability of many people to manage their blood sugar safely and with greater predictability. Someone who actively uses these tools, engages well with their diabetes team, and has a strong track record of avoiding severe hypos is in a considerably stronger position during an assessment than someone who does not.
Diabetic Ketoacidosis: A Risk Specific to Poorly Managed Insulin-Treated Diabetes
Diabetic ketoacidosis (DKA) is a serious and potentially life-threatening complication that occurs almost exclusively in insulin-treated diabetes, and most commonly in Type 1. It arises when there is insufficient insulin in the body, causing blood sugar to rise sharply while the body begins breaking down fat for fuel at a dangerously accelerated rate. This produces ketones, which build up in the blood and make it acidic.
DKA can develop relatively quickly, sometimes within hours, and causes symptoms including excessive thirst, frequent urination, nausea, vomiting, abdominal pain, confusion, and eventually loss of consciousness. It requires emergency hospital treatment and carries a mortality risk if not recognised and treated promptly.
The relevance to a fostering or adoption assessment is clear. A carer who develops DKA is acutely unwell, often requiring admission to hospital, and would be unable to care for a child during that time. For a looked-after child who may already have experienced disruption and instability, an unplanned hospital admission of their carer is far from a minor event.
DKA does not occur in well-managed diabetes. It is a consequence of insulin omission, whether due to forgetting doses, deliberately skipping them, illness without appropriate sick-day management, or pump failure without appropriate backup. A history of DKA admissions therefore raises questions not just about the physical health of the applicant, but about their engagement with their own diabetes management.
As with hypoglycaemia, context matters. A single DKA episode at diagnosis, or during a period of serious illness many years ago, is very different to a pattern of recurrent admissions. The medical adviser will look at the full picture, including what triggered any previous episodes and what has changed in the person's management since.
What Does a Well-Controlled Diabetes Assessment Look Like?
To put this in more positive terms, the features that give a medical adviser confidence in an applicant with diabetes are broadly as follows.
A consistently good or near-normal HbA1c over a sustained period, reflecting genuine day-to-day control rather than a one-off result. Regular attendance at diabetes review appointments and diabetic eye, foot, and kidney screening. No evidence of significant complications, or where complications are present, that they are stable and well-managed.
For those on insulin, a clear understanding of hypoglycaemia management, good awareness of early warning signs. No recent history of severe hypoglycaemic episodes requiring third-party assistance, and no pattern of DKA admissions.
None of this requires perfection. Diabetes is a complex, fluctuating condition and living with it involves an enormous amount of daily effort and adjustment. Medical advisers understand this. What the assessment is looking for is evidence of consistent engagement, good awareness, and a stable picture overall.
The Reassurance
If you have diabetes and are considering fostering or adopting, the most important thing you can do is go into your assessment with a clear picture of your own condition. Know your most recent HbA1c. Be up to date with your annual reviews and screening. Be honest about any episodes of severe hypoglycaemia or hospital admissions, as the medical adviser will take the full context into account.
Diabetes, managed well, is entirely compatible with being an excellent foster carer or adopter. The medical assessment exists not to create barriers, but to ensure that every child placed with a carer is in the safest possible hands. For most people with well-controlled diabetes, that is exactly what the evidence will show.
If you have questions about how your health conditions might be viewed as part of a fostering or adoption medical assessment, you are welcome to contact us at Orr Medical. We are happy to discuss your situation before any formal assessment takes place.
This article is for information purposes only and does not represent medical advice.
Orr Medical provides specialist fostering medicals and adoption medical assessments across the UK. All reports are prepared by experienced GPs with specific expertise in fostering and adoption medicine.