What should I get checked at 30?

Your thirties are when the silent numbers start mattering, and the screening list is shorter than you might fear. MedlinePlus makes the core point: the only way to find out if you have high blood pressure is to have it checked regularly, and high blood sugar and high cholesterol also may not have any symptoms in the early stages, but simple blood tests can check for them. So the baseline for both sexes in the 18 to 39 band: regular blood pressure checks, plus cholesterol and blood sugar testing on a risk-based schedule, with family history, weight, and smoking pushing earlier. For women specifically, per MedlinePlus: cervical cancer screening should start at age 21 unless your provider advises otherwise, with women 21 through 29 on a set screening interval, while a screening mammogram is not recommended for most women under 40 unless family history or a high-risk genetic marker changes the math. For men: the same silent-number checks, and routine testicular screening is not recommended, though anything you notice yourself deserves a look. The rest is maintenance: dental checkups, eye exams, vaccines, skin awareness. Family history of early heart disease, cancer, or diabetes rewrites the schedule earlier, so bring it up.