Diabetes Symptoms in Babies, Children, and Adults: Warning Signs

"Learn common diabetes symptoms in babies, children, and adults, including thirst, frequent urination, weight loss, fatigue, and DKA warning signs."

Illustration. Blood sugar level testing as part of diabetes mellitus monitoring in adults

In children, changes in urination habits or unexplained weight loss despite an increased appetite may be warning signs that deserve attention. In babies, recognizing diabetes symptoms can be more difficult because they cannot yet describe thirst, weakness, or other physical changes.

Diabetes is not limited to adults. Type 1 diabetes is commonly diagnosed in children and young adults, although it can develop at any age. Type 2 diabetes is more common in adults, but children and teenagers can also develop the condition.

Diabetes Symptoms in Babies

Recognizing diabetes in babies requires particular attention because infants cannot explain symptoms such as excessive thirst, weakness, or other changes they may be experiencing.

In a baby with high blood glucose, parents may notice changes in drinking and urination patterns. A baby may appear to need fluids more frequently and may urinate more often. Dehydration can also occur.

However, these signs are not specific to diabetes. Changes in drinking, urination, or a baby's overall condition can have many other causes and cannot be used alone to diagnose diabetes.

Diabetes that develops very early in life can also have specific characteristics. The National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) notes that diabetes developing before 6 months of age is more often associated with rare forms of monogenic diabetes.

Parents should therefore avoid trying to diagnose diabetes based only on symptoms. If a baby develops unusual changes, particularly signs of dehydration or worsening physical condition, medical evaluation is necessary.

It is also important to distinguish diabetes from hypoglycemia, or low blood sugar. Shaking, hunger, weakness, confusion, or changes in consciousness can occur when blood glucose becomes too low. Hypoglycemia is not a typical symptom of undiagnosed diabetes and can have several possible causes.

Diabetes Symptoms in Children

Symptoms of type 1 diabetes in children can develop relatively quickly. Some of the most noticeable signs include frequent urination, increased thirst, and increased appetite accompanied by unexplained weight loss.

Changes in urination habits can also provide an important clue. For example, a child who previously stopped wetting the bed may begin bed-wetting again or have more frequent urinary accidents.

Other possible diabetes symptoms in children include:

• Persistent fatigue.
• Irritability or mood changes.
• Blurred vision.
• Increased hunger.
• Recurrent infections, including certain fungal infections.
• Wounds that take longer to heal.
• Tingling or numbness in the hands and feet, particularly in diabetes that has been present for a longer period.

Not every child will experience all of these symptoms. Type 2 diabetes can also develop gradually and may cause few or no obvious symptoms in some children.

What Are the Symptoms of Diabetes in Adults?

Diabetes symptoms in adults may be mild or go unnoticed. Type 2 diabetes, in particular, often develops gradually over several years. As a result, some people may only discover that they have diabetes during a routine medical examination or after another health problem develops.

Common signs and symptoms to watch for include:

Frequent Thirst and Urination

Increased thirst and frequent urination are among the most common symptoms of diabetes.

These symptoms can occur together because high blood glucose levels can cause the kidneys to remove more glucose through urine, which can also lead to increased fluid loss.

Unexplained Weight Loss

Losing weight without intentionally changing your diet or physical activity can be a sign of diabetes, particularly type 1 diabetes.

With type 1 diabetes, symptoms can develop over a period of days or weeks. This differs from type 2 diabetes, which generally develops more slowly.

Fatigue and Blurred Vision

Persistent fatigue and blurred vision can occur in people with diabetes. Changes in blood glucose levels can also affect vision.

Tingling or Numbness in the Hands and Feet

Tingling or numbness in the hands and feet can be associated with diabetes, particularly when the condition has been present for a longer period.

These symptoms can be related to diabetic nerve damage, which may develop as a complication of diabetes.

Slow-Healing Wounds and Skin Changes

Recurrent infections and wounds that are slow to heal can also be signs associated with diabetes.

Some people with type 2 diabetes may develop areas of darker skin, particularly around the neck, armpits, or other skin folds.

Not Every Symptom Means Diabetes

Experiencing one or more of these symptoms does not automatically mean that a person has diabetes.

Increased thirst, frequent urination, unexplained weight loss, fatigue, and tingling can have many different causes. Therefore, diabetes cannot be diagnosed based on symptoms alone.

Diabetes needs to be confirmed through blood glucose testing. Healthcare professionals may use tests such as fasting blood glucose, HbA1c, an oral glucose tolerance test (OGTT), or a random blood glucose test in certain circumstances.

Even blood glucose meters used at home cannot replace a medical diagnosis. Test results need to be interpreted in the context of a person's symptoms, medical history, and overall health.

When Should You Get Tested for Diabetes?

Consider seeking medical evaluation if you develop unexplained increased thirst or frequent urination, unintentional weight loss, persistent fatigue, blurred vision, or tingling or numbness.

Parents should also pay attention to changes in a child's urination habits. Bed-wetting that returns after a child has previously stopped, particularly when accompanied by increased thirst, frequent urination, or weight loss, may warrant medical evaluation.

If symptoms develop rapidly and are accompanied by nausea, vomiting, abdominal pain, difficulty breathing, severe weakness, or fruity-smelling breath, they may indicate diabetic ketoacidosis (DKA), a medical emergency.

Ultimately, recognizing diabetes symptoms is not about diagnosing yourself. The goal is to recognize when changes in the body may need medical evaluation. Identifying the underlying cause early can help ensure that appropriate treatment is provided as soon as possible.