What this diabetes and endocrine health section covers

This section includes GP reviewed summaries of common diabetes and hormone related topics seen in primary care. Articles explain how conditions are diagnosed, which tests are used and how lifestyle and medicines support long term control.

The topics include:

  • type 2 diabetes and pre diabetes
  • type 1 diabetes monitored in primary care
  • HbA1c and blood tests for diabetes
  • diabetes reviews, complications and annual checks
  • metabolic health, weight and cardiovascular risk
  • advice on taking GLP-1 medication safely
  • thyroid symptoms and thyroid function tests
  • tiredness, low energy and possible hormonal causes
  • raised prolactin or cortisol, when found on blood tests

Content is for general information and does not replace advice from your usual diabetes or endocrine team.

Common reasons adults seek GP advice for diabetes or hormone concerns

Common reasons include:

  • increased thirst, passing urine more often or unexplained tiredness
  • a new raised HbA1c or fasting glucose result
  • questions about starting or adjusting diabetes medicines
  • weight gain around the middle or difficulty losing weight
  • feeling cold or low in mood with possible underactive thyroid symptoms
  • feeling hot, anxious or having palpitations that may suggest overactive thyroid
  • menstrual changes, low libido or fertility concerns that may have a hormonal component
  • incidental findings on blood tests such as raised prolactin or cortisol

A GP helps interpret results, considers lifestyle, family history and medicines, and advises whether further tests or specialist referral are needed.

Types of diabetes and endocrine topics explained in this section

Below is an overview of the main topics covered. Each has a dedicated article for deeper detail.

Type 2 diabetes and pre diabetes are often identified through routine blood tests. Articles describe symptoms, diagnostic thresholds, lifestyle changes, medicines and how early intervention can reduce long term risk.

People with type 1 diabetes are usually under a specialist team, although GPs still support sick day advice, infection management and wider health checks. This topic explains how primary care and specialist care work together.

HbA1c reflects average blood glucose over several months. Content explains how HbA1c is used to diagnose diabetes, monitor control and plan treatment alongside finger prick readings and other tests.

Regular reviews help monitor blood pressure, cholesterol, kidney function, eyes and feet. Articles outline what typically happens at an annual diabetes review and why each test matters.

Metabolic health links blood sugar, weight, cholesterol and blood pressure. This section explains how lifestyle factors and medical treatment work together to improve long term health, support weight management and reduce cardiovascular risk in people with or without diabetes.

GLP-1 medications can support weight loss and metabolic health when prescribed safely. This GP written guide explains how they work, what to expect, common side effects and important safety considerations before and during treatment.

Thyroid problems can cause tiredness, weight change, mood changes, heat or cold intolerance and changes in heart rate. Content explains TSH, T4 and T3 blood tests and when treatment or referral is advised.

Persistent fatigue can have many causes. Articles discuss when hormonal issues such as thyroid disease, adrenal problems or low sex hormones may be considered and which basic tests a GP might arrange.

Occasionally blood tests show raised prolactin or cortisol levels. This topic describes common benign reasons for abnormal results, when repeat testing is needed and when a referral to an endocrinologist is appropriate.


If you would like to discuss diabetes or thyroid related symptoms, you can book an online GP appointment with AccessGP.

Last reviewed by Dr Zamiel Hussain, GMC registered GP
Updated: 11 December 2025