Update app.py

app.py

@@ -88,7 +88,12 @@ def main():
     st.title("BMD and T-score Prediction Tool")
     
     # Input patient data
-    bmd_patient = st.number_input("Initial BMD", min_value=0.0, max_value=2.0, value=0.8, step=0.01)
+    bmd_patient = st.number_input(
+        "Initial BMD",
+        min_value=0.000, max_value=2.000,
+        value=0.800, step=0.001,
+        format="%.3f"
+    )
     site_options = ['FN', 'TH', 'LS']
     site = st.selectbox("Select Region (Site)", site_options)