Cenforce 100, which contains sildenafil citrate, primarily works by increasing blood flow to the penis to treat erectile dysfunction. It does not directly affect sperm count or fertility in most men. Studies generally show that sildenafil has a neutral or even slightly positive effect on sperm motility and semen quality, especially in men with existing erectile or fertility issues. However, excessive or long-term use without medical supervision could potentially impact overall reproductive health due to indirect factors like dependency or interactions with other medications. If you're trying to conceive, it's best to consult a healthcare provider for personalized advice.