Intrauterine insemination, often the first step for couples wanting a baby, shows varied results.  

Researchers looked at studies from 2000 to 2024 to see why some people do better than others.  

Age and weight play a big part. A woman who is younger and has a body mass index in the healthy range tends to have higher chances of pregnancy.  

Stress, diet, and vitamins also matter. Foods rich in unsaturated fats, folate, B12, A, C, E, and minerals like zinc and selenium help the process.  

The uterus itself is key. When its lining measures between 6 and 10 millimetres, the odds improve.  

Having enough healthy eggs ready also boosts success.  

For men, sperm quality is crucial. A count of 5 to 10 million moving sperm after cleaning and good shape reduce DNA damage are linked with better outcomes.  

Doctors try different techniques to help. Using slow-release drops, softer tubes for delivery, and extra support in the early pregnancy phase can help some patients.  

But these tricks come from small studies, so they are not guaranteed for everyone.  

Lifestyle choices influence results too. Smoking, drinking, and harmful chemicals can lower success rates, especially when paired with poor diet or high stress.  

Overall, the best chances arise when a woman’s lining is right, her weight and diet are healthy, she has enough good eggs, the man supplies quality sperm, and both avoid harmful habits.  

Combining medical guidelines with everyday health choices gives couples the best shot at a successful IUI.

IUI Success: What Really Matters

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