Type 2 Diabetes Mellitus in a 35-Year-Old Male

Type 2 diabetes case study showing a 35-year-old man checking his blood sugar.

Type 2 Diabetes Mellitus is increasingly being diagnosed in younger adults, particularly among individuals with obesity, sedentary lifestyles and a family history of diabetes. The condition often develops gradually, and early symptoms such as increased thirst, frequent urination, fatigue and unexplained weight loss should not be ignored.

Early diagnosis and timely intervention can help improve blood sugar control and reduce the risk of long-term complications affecting the eyes, kidneys, nerves and cardiovascular system.

Effective management requires a combination of lifestyle modification, appropriate medication, regular monitoring, and assessment of the patient’s overall cardiometabolic risk.

Patient Information

  • Age/Sex: 35-year-old male
  • Occupation: Office professional
  • Chief Concern: Increased thirst, frequent urination, fatigue, and recent weight loss

Presenting Complaints

The patient presented with:

  • Increased frequency of urination for 2 to 3 months
  • Excessive thirst
  • Increased tiredness, particularly in the evening
  • Intermittent blurred vision
  • Unintentional weight loss of approximately 4 kg over 2 months

There was no history of fever, dysuria, vomiting, abdominal pain or altered sensorium.

Relevant History

The patient had a predominantly sedentary lifestyle and consumed a carbohydrate-rich diet with frequent sugary beverages and restaurant meals.

He had no previous diagnosis of diabetes or hypertension.

    • Family History:
      His father had Type 2 Diabetes Mellitus diagnosed at 48 years of age.
  • Personal History:
    • Sedentary lifestyle
    • Irregular physical activity
    • Approximately 6 hours of sleep per night
    • Occasional alcohol consumption
    • No smoking

Clinical Examination

On examination, the following findings were noted:

  • Height: 172 cm
  • Weight: 92 kg
  • BMI: 31.1 kg/m², consistent with obesity
  • Blood Pressure: 138/86 mmHg
  • Pulse: 82/min

General examination was unremarkable, with no pedal oedema. Systemic examination was normal.

Diagnostic Assessment

Laboratory investigations revealed:

Investigation

Result

Fasting plasma glucose

168 mg/dL

Post-meal glucose

248 mg/dL

HbA1c

8.20%

Serum creatinine

0.9 mg/dL

eGFR

>90 mL/min/1.73 m²

ALT

42 U/L

Urine routine

No significant abnormality

Urine albumin-to-creatinine ratio

Normal

Lipid profile

Elevated triglycerides, low HDL

TSH

Normal

C-peptide

Preserved

The findings were consistent with diabetes mellitus, with no evidence of significant renal impairment.

Clinical Assessment

Diagnosis

  • Newly diagnosed Type 2 Diabetes Mellitus
  • Obesity
  • Dyslipidaemia

The diagnosis was supported by elevated fasting and post-meal glucose levels together with an HbA1c of 8.2%.

Differential Diagnosis

Given the patient’s young age, the following conditions were considered where clinically appropriate:

  • Type 1 Diabetes Mellitus
  • Latent autoimmune diabetes in adults (LADA)
  • Monogenic diabetes
  • Secondary diabetes
  • Type 2 Diabetes Mellitus

The patient’s obesity, family history, preserved C-peptide and clinical presentation favoured Type 2 Diabetes Mellitus.

Therapeutic Intervention

A structured treatment plan was developed to improve glycaemic control while addressing obesity and other cardiometabolic risk factors.

Lifestyle Intervention

The patient received counselling on sustainable lifestyle modifications, including:

  • Calorie-controlled, high-fibre diet
  • Reduction in refined carbohydrates and sugar-sweetened beverages
  • Increased intake of vegetables, pulses and whole grains
  • Adequate protein intake
  • Portion control
  • Regular aerobic activity
  • Resistance training 2 to 3 times per week
  • Weight reduction

An initial weight-loss target of approximately 5 to 10% of body weight was discussed.

Pharmacological Management

Considering the patient’s HbA1c, obesity and preserved renal function, pharmacological therapy was initiated with an appropriate glucose-lowering agent. Treatment was individualised according to comorbidities, cost, patient preferences and the risk of adverse effects.

Metformin may be considered as an initial therapy when appropriate. Given obesity, agents with clinically meaningful weight-loss benefits may also be considered depending on availability and patient-specific factors.

Cardiometabolic Risk Assessment

The patient was evaluated for associated cardiovascular risk factors, including:

  • Blood pressure
  • Lipid profile
  • Smoking status
  • Obesity
  • Family history
  • Physical activity
  • Overall cardiovascular risk

Management of dyslipidaemia and blood pressure was considered according to the patient’s overall cardiovascular risk rather than glucose control alone.

Screening for Diabetes Complications

At diagnosis, screening was considered for the following complications.

Eye Assessment

A dilated retinal examination was recommended.

Kidney Assessment

Urine albumin-to-creatinine ratio and eGFR were evaluated.

Neuropathy Assessment

A foot examination, including assessment of sensation and peripheral pulses, was considered.

Cardiovascular Assessment

A comprehensive cardiovascular risk assessment was performed.

The patient was also educated about daily foot care and symptoms requiring prompt medical attention.

Follow-Up

The patient was advised to monitor blood glucose according to the prescribed treatment regimen and return for regular review.

At follow-up:

  • Weight and BMI were reassessed.
  • Home glucose records were reviewed.
  • Medication adherence and adverse effects were evaluated.
  • Lifestyle adherence was discussed.
  • Blood pressure was reassessed.
  • HbA1c was planned for reassessment after approximately three months.

Clinical Learning Points

  • Type 2 Diabetes can present at a relatively young age, particularly in individuals with obesity and a positive family history.
  • Symptoms such as polyuria, polydipsia, fatigue and unexplained weight loss should prompt glucose testing.
  • HbA1c is useful for diagnosis and monitoring in appropriate clinical settings.
  • Management should address the patient’s entire cardiometabolic risk profile, not glucose alone.
  • Weight management is an important component of treatment in patients with obesity and Type 2 Diabetes.
  • Screening for diabetic kidney disease, retinopathy and neuropathy is important.
  • In younger patients, particularly when the clinical picture is atypical, alternative forms of diabetes should be considered.

Discussion

This case demonstrates how Type 2 Diabetes Mellitus can develop in younger adults with obesity, a sedentary lifestyle and a positive family history. Although the patient’s symptoms had been present for several months, timely evaluation helped identify the condition before significant complications had developed.

The combination of lifestyle modification, individualised glucose-lowering therapy and regular monitoring formed the foundation of treatment. Early screening for complications involving the eyes, kidneys, nerves and cardiovascular system also plays an important role in long-term disease management.

Conclusion

This case highlights the importance of recognising early symptoms of Type 2 Diabetes Mellitus and seeking timely medical evaluation. A comprehensive approach combining lifestyle changes, appropriate medication and regular follow-up can improve glycaemic control and reduce the risk of long-term complications.

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Note: This case study is for illustrative and educational purposes only and should not replace professional medical advice. If you have concerns about your health, please consult a qualified healthcare provider.