Hypothyroidism and sex drive: what to know

An underactive thyroid may lower energy, affect mood and change the body’s normal hormone balance. These effects can reduce interest in sex or make intimacy feel difficult. Dryness, erection difficulties, pain, relationship stress, depression, sleep problems and some medicines can also contribute. Reduced desire does not identify hypothyroidism by itself; it is one concern to discuss alongside symptoms such as fatigue, daytime sleepiness, constipation, cold intolerance or generalised weakness.

Book a routine appointment if the change persists, causes distress or began after a medicine or health change. Tell the clinician when it started and whether desire, arousal, erections, lubrication or orgasm has changed. They may review thyroid blood tests, medicines, mood, sleep and other health factors. Do not stop prescribed treatment without advice. A private, direct conversation helps identify whether thyroid care alone is enough or whether another issue needs attention.

Seek prompt help if low mood includes thoughts of self-harm, or if severe tiredness, confusion, fainting or a major change in functioning develops. Arrange medical advice for persistent sexual pain, bleeding, erectile difficulty or a sudden change after starting treatment. These symptoms have multiple possible causes and should not be self-diagnosed.

Ask whether your thyroid levels are in the intended range, whether any medicine may affect desire, and which options could help with dryness, pain, erections, mood or sleep. You can request a same-gender clinician or private consultation if that makes the discussion easier.