- Only 4% father children after having the operation versus 13% who do so before
- This is despite weight, sexual quality of life and hormone levels all improving
- It’s unclear if resolving abnormal hormones and micronutrients cures infertility
- Researchers from the Hospital das Clinicas in São Paulo analysed 79 men
- All the participants completed a questionnaire about their sexual quality of life
Weight-loss surgery could make men infertile, new research suggests.
Semen abnormalities occur in 57.1 per cent of men after having bariatric surgery, a study found.
Only four per cent of the study’s 79 participants fathered children after having the procedure, compared to 13 per cent before, the research adds.
Dr Edward Lin, editor-in-chief of the journal Bariatric Surgical Practice and Patient Care, which published the study, said: ‘This study is one important piece in solving the puzzle of male infertility.
‘The challenge is to see if correcting hormonal and micronutrient aberrations are enough to reverse male infertility.’
Semen abnormalities occur in 57.1 per cent of men after having bariatric surgery (stock)
How the research was carried out
Researchers from the Hospital das Clinicas in São Paulo analysed men who were attempting to conceive with their partner.
Of the study’s participants, 23 were followed for at least five years after having bariatric surgery; 23 for two years after having the operation; 18 were obese but did not have the procedure; and 15 were of a healthy weight.
All of the participants completed a questionnaire asking them about their sexual quality of life.
They were also assessed for their blood glucose, testosterone, vitamin D, zinc and semen levels.
Semen abnormalities affect 57.1% after surgery
Results reveal semen abnormalities occur in up to 57.1 per cent of men two years after having bariatric surgery.
Only four per cent of the study’s participants fathered children after having the procedure, compared to 13 per cent who did so before, however, this is not a significant outcome.
Such results occurred despite sexual quality of life, weight and hormone levels all improving.
It is unclear why these findings occurred.
Dr Lin said: ‘This study is one important piece in solving the puzzle of male infertility.
‘The challenge is to see if correcting hormonal and micronutrient aberrations are enough to reverse male infertility.’