Type 2 Diabetes in Children

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Type 2 diabetes in children.

It rarely arrives with an emergency. It arrives quietly, over years — which is exactly why it can be turned around.

What Changed

A disease that used to be called “adult onset.”

Type 2 diabetes was once so rare in children that it was named for adults. That is no longer true, and South Texas is one of the places where it changed fastest. Children who develop type 2 diabetes are most often diagnosed in their early teens, partly because puberty itself makes the body less able to use insulin — and girls are more likely than boys to develop it.

Here in Nueces County, 15.5 percent of adults already carry a diabetes diagnosis and 44 percent are obese. Those adults were children here. The pattern is learned early, and it can be unlearned early.

See the local numbers →

Warning Signs

What to watch for in your child.

  • Unusual thirst — drinking constantly, carrying a bottle everywhere
  • Frequent urination — including getting up at night, or new bedwetting
  • Increased hunger, especially alongside fatigue
  • Tiredness that sleep does not fix
  • Blurry vision
  • Darkened, velvety patches of skin — usually on the back of the neck, or in the armpits and groin. This is called acanthosis nigricans and it is a visible sign of insulin resistance. Many parents assume it is dirt that will not scrub off. It is not.
  • Cuts and sores that heal slowly, or repeated skin and yeast infections
  • Unintended weight loss — less common in type 2 than in type 1, but always worth a call

Many children with type 2 diabetes have no symptoms at all when they are diagnosed. That is why testing, not just watching, matters.

Symptom list adapted from Mayo Clinic and CDC patient education materials on type 2 diabetes in children.

When Testing Is Recommended

Age 10, or when puberty starts — whichever comes first.

The American Diabetes Association’s Standards of Care recommend risk-based screening for prediabetes and type 2 diabetes after the onset of puberty or at age 10, whichever comes earlier, in young people who have overweight (BMI at or above the 85th percentile) or obesity (95th percentile or above) plus at least one additional risk factor. If results are normal, testing is generally repeated at least every three years.

Additional risk factors include: a mother who had diabetes or gestational diabetes while pregnant with the child; a parent, grandparent or sibling with type 2 diabetes; belonging to a higher-risk racial or ethnic group, including Hispanic/Latino and Black communities; and signs of insulin resistance such as acanthosis nigricans, high blood pressure, abnormal cholesterol or polycystic ovary syndrome.

Source: American Diabetes Association, Standards of Care in Diabetes, Children and Adolescents section; consistent with ISPAD 2024 consensus guidelines. Your child’s clinician decides what is appropriate for your child.

Reading The Lab Report

What the numbers mean.

Three common tests, and the ranges generally used to define prediabetes and diabetes. Prediabetes is not a diagnosis of failure — it is a warning delivered while there is still time.

TestNormalPrediabetesDiabetes
A1C (3-month average)Below 5.7%5.7% – 6.4%6.5% or higher
Fasting blood glucoseBelow 100 mg/dL100 – 125 mg/dL126 mg/dL or higher
2-hour glucose tolerance testBelow 140 mg/dL140 – 199 mg/dL200 mg/dL or higher

Ranges adapted from ADA diagnostic criteria. A diagnosis usually requires confirmation with a repeat test. Guidelines note that in children, fasting glucose used alone can overdiagnose — which is why A1C is often preferred for screening. Only a clinician can interpret your child’s results.

At Your Appointment

Six questions worth asking.

  • Given my child’s BMI percentile and our family history, should we screen for prediabetes now?
  • Which test are you ordering, and what were the exact numbers?
  • Is this dark skin on the neck acanthosis nigricans?
  • What is my child’s blood pressure and cholesterol, and are they in range for age?
  • Is there a diabetes prevention program, dietitian or nutrition class covered by our plan — or a free one nearby?
  • What specifically should change this month, and when do we recheck?

Write the answers down. Bring them to Ignite Fit — the Fuel and Move portions of our season are built to support exactly this kind of plan, with the parent learning alongside the child.

Where To Go Next

Free, trustworthy help.

CDC National DPP

The CDC-recognized yearlong lifestyle change program for adults with prediabetes — including how to find one near you.

cdc.gov →

Preventing type 2 in kids

CDC’s parent-facing page on risk, puberty and what families can change.

cdc.gov →

Texas DSHS Diabetes Program

State fact sheets, education materials and Texas-specific prevalence data.

dshs.texas.gov →

Not medical advice. Ignite His Glory is a community and faith organization, not a healthcare provider. This page explains publicly available guidance so families can have better conversations with a doctor. Always talk with your child’s clinician before changing diet, exercise or any medication.

Ten weeks can change a trajectory.

Ignite Fit is free to families, ages 8–17, twice a week for ten weeks. Move, Fuel, Faith.