When is a man sperm yellow?

Sperm can appear yellow due to several factors, including the presence of certain vitamins, dietary choices, or even the consumption of certain medications. In some cases, yellow sperm may indicate a higher concentration of urine, which can occur if there is insufficient hydration. Additionally, yellow discoloration can sometimes signal an infection or other medical conditions, so it's advisable to consult a healthcare professional if this change is persistent or concerning.