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This website has separate sections for healthcare professionals (containing promotional information), and patients who have been prescribed Testogel® (testosterone) 16.2 mg/g gel, within the UK.

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This website is provided for HCPs in the UK by Besins Healthcare (UK) Ltd.

Diagnosing testosterone deficiency (TD)

Starting the conversation with your patients

When to treat

When a patient has symptoms of TD in conjunction with two blood tests suggestive of low testosterone, consider initiating testosterone therapy (TTh).1

The British Society for Sexual Medicine (BSSM) recommends initiating TTh only in symptomatic men in conjunction with weight-loss advice, lifestyle modification and treatment of comorbidities.1

TTh can be initiated when a diagnosis of TD has been confirmed and contraindications have been ruled out. Regular monitoring during TTh to avoid exposure to subphysiological or supraphysiological levels of testosterone is essential.

Serum testosterone levels: when to treat1

Treatment Diagram


  1. Hackett G, Kirby M, Edwards D, et al. British Society for Sexual Medicine Guidelines on Adult Testosterone Deficiency, With Statements for UK Practice. J Sex Med. 2017;14(12):1504–1523.

TES/2020/009. April 2021.

Adverse event reporting

Adverse events should be reported. Reporting forms and information can be found at or search for MHRA Yellow Card in the Google Play or Apple App Store. Adverse events should also be reported to Besins Healthcare (UK) Ltd Drug Safety on 0203 862 0920 or Email: