diff --git a/康康/Features/Indicator/IndicatorQuickSheet.swift b/康康/Features/Indicator/IndicatorQuickSheet.swift
index d4e6376..c297394 100644
--- a/康康/Features/Indicator/IndicatorQuickSheet.swift
+++ b/康康/Features/Indicator/IndicatorQuickSheet.swift
@@ -601,14 +601,6 @@ struct IndicatorQuickSheet: View {
         )
         ctx.insert(indicator)
         try? ctx.save()
-
-        // 身高顺手回写 Profile
-        if m == .height, let cm = Int(value.trimmingCharacters(in: .whitespaces)),
-           let p = profile {
-            p.heightCM = cm
-            p.updatedAt = .now
-            try? ctx.save()
-        }
     }
 
     private func saveFreeform() {
diff --git a/康康/Features/Monitor/MonitorMetric.swift b/康康/Features/Monitor/MonitorMetric.swift
index 62a0d1e..ca770af 100644
--- a/康康/Features/Monitor/MonitorMetric.swift
+++ b/康康/Features/Monitor/MonitorMetric.swift
@@ -9,11 +9,11 @@ enum MonitorMetric: String, CaseIterable, Identifiable {
     case bloodPressure         // bp.systolic + bp.diastolic
     case fastingGlucose        // glucose.fasting
     case postprandialGlucose   // glucose.postprandial
-    case weight                // weight
     case temperature           // temperature
     case heartRate             // heart_rate
     case spo2                  // spo2
-    case height                // height(录入后回写 UserProfile.heightCM)
+
+    // 注:身高 / 体重不在这里——它们是 UserProfile 的字段(单值,不存历史)。
 
     var id: String { rawValue }
 
@@ -22,11 +22,9 @@ enum MonitorMetric: String, CaseIterable, Identifiable {
         case .bloodPressure:       return "血压"
         case .fastingGlucose:      return "空腹血糖"
         case .postprandialGlucose: return "餐后血糖"
-        case .weight:              return "体重"
         case .temperature:         return "体温"
         case .heartRate:           return "心率"
         case .spo2:                return "血氧"
-        case .height:              return "身高"
         }
     }
 
@@ -36,11 +34,9 @@ enum MonitorMetric: String, CaseIterable, Identifiable {
         case .bloodPressure:       return "heart.fill"
         case .fastingGlucose:      return "drop.fill"
         case .postprandialGlucose: return "drop.circle.fill"
-        case .weight:              return "scalemass.fill"
         case .temperature:         return "thermometer.medium"
         case .heartRate:           return "waveform.path.ecg"
         case .spo2:                return "lungs.fill"
-        case .height:              return "ruler.fill"
         }
     }
 
@@ -71,12 +67,6 @@ enum MonitorMetric: String, CaseIterable, Identifiable {
                           unit: "mmol/L",
                           placeholder: "6.5",
                           baseRange: 0...7.8)]
-        case .weight:
-            return [Field(seriesKey: "weight",
-                          label: "体重",
-                          unit: "kg",
-                          placeholder: "68",
-                          baseRange: nil)]
         case .temperature:
             return [Field(seriesKey: "temperature",
                           label: "体温",
@@ -95,12 +85,6 @@ enum MonitorMetric: String, CaseIterable, Identifiable {
                           unit: "%",
                           placeholder: "98",
                           baseRange: 95...100)]
-        case .height:
-            return [Field(seriesKey: "height",
-                          label: "身高",
-                          unit: "cm",
-                          placeholder: "175",
-                          baseRange: nil)]
         }
     }
 }
diff --git a/康康/Features/Profile/ProfileEditView.swift b/康康/Features/Profile/ProfileEditView.swift
index ef3b070..e31a8d7 100644
--- a/康康/Features/Profile/ProfileEditView.swift
+++ b/康康/Features/Profile/ProfileEditView.swift
@@ -53,11 +53,28 @@ private struct ProfileEditForm: View {
     // MARK: - 基本
 
     private var basicsSection: some View {
-        Section("基本") {
+        Section {
             birthYearPicker
             sexPicker
             heightRow
+            weightRow
             bloodTypePicker
+        } header: {
+            Text("基本")
+        } footer: {
+            if let bmi = profile.bmi {
+                Text("BMI: \(String(format: "%.1f", bmi))  \(bmiLabel(bmi))")
+                    .font(.system(size: 11))
+            }
+        }
+    }
+
+    private func bmiLabel(_ bmi: Double) -> String {
+        switch bmi {
+        case ..<18.5:  return "(偏瘦)"
+        case ..<24:    return "(正常)"
+        case ..<28:    return "(超重)"
+        default:       return "(肥胖)"
         }
     }
 
@@ -97,6 +114,18 @@ private struct ProfileEditForm: View {
         }
     }
 
+    private var weightRow: some View {
+        HStack {
+            Text("体重")
+            Spacer()
+            TextField("kg", value: $profile.weightKG, format: .number.precision(.fractionLength(0...1)))
+                .keyboardType(.decimalPad)
+                .multilineTextAlignment(.trailing)
+                .frame(width: 80)
+            Text("kg").foregroundStyle(Tj.Palette.text3)
+        }
+    }
+
     private var bloodTypePicker: some View {
         Picker("血型", selection: $profile.bloodTypeRaw) {
             Text("不知道").tag("")
diff --git a/康康/Models/UserProfile.swift b/康康/Models/UserProfile.swift
index 68bef4f..e0d855c 100644
--- a/康康/Models/UserProfile.swift
+++ b/康康/Models/UserProfile.swift
@@ -3,10 +3,11 @@ import SwiftData
 
 @Model
 final class UserProfile {
-    // —— 核心 4 项 ——
+    // —— 核心 5 项 ——
     var birthYear: Int?           // 1990。隐私考虑只存年,不存月日
     var biologicalSexRaw: String  // "" / "male" / "female"
     var heightCM: Int?
+    var weightKG: Double?         // 体重支持小数(68.5)
     var bloodTypeRaw: String      // "" / "A" / "B" / "AB" / "O"
 
     // —— 健康背景 ——
@@ -22,6 +23,7 @@ final class UserProfile {
     init(birthYear: Int? = nil,
          biologicalSexRaw: String = "",
          heightCM: Int? = nil,
+         weightKG: Double? = nil,
          bloodTypeRaw: String = "",
          allergies: [String] = [],
          chronicConditions: [String] = [],
@@ -31,6 +33,7 @@ final class UserProfile {
         self.birthYear = birthYear
         self.biologicalSexRaw = biologicalSexRaw
         self.heightCM = heightCM
+        self.weightKG = weightKG
         self.bloodTypeRaw = bloodTypeRaw
         self.allergies = allergies
         self.chronicConditions = chronicConditions
@@ -65,19 +68,36 @@ extension UserProfile {
         return Calendar.current.component(.year, from: .now) - y
     }
 
-    /// 给 ProfileCard 一行预览:"38岁 · 男 · 175cm · A型"
+    /// 给 ProfileCard 一行预览:"38岁 · 男 · 175cm · 68kg · A型"
     var summaryLine: String {
         var parts: [String] = []
         if let age { parts.append("\(age)岁") }
         if sex != .undisclosed { parts.append(sex.label) }
         if let h = heightCM { parts.append("\(h)cm") }
+        if let w = weightKG {
+            let s = w.truncatingRemainder(dividingBy: 1) == 0
+                ? String(format: "%.0fkg", w)
+                : String(format: "%.1fkg", w)
+            parts.append(s)
+        }
         if !bloodTypeRaw.isEmpty { parts.append("\(bloodTypeRaw)型") }
         return parts.joined(separator: " · ")
     }
 
     /// 资料是否完整到值得显示 summaryLine(否则提示"完善资料")
     var hasAnyBasics: Bool {
-        birthYear != nil || sex != .undisclosed || heightCM != nil || !bloodTypeRaw.isEmpty
+        birthYear != nil ||
+        sex != .undisclosed ||
+        heightCM != nil ||
+        weightKG != nil ||
+        !bloodTypeRaw.isEmpty
+    }
+
+    /// BMI(kg/m²),需要同时有身高 + 体重才能算
+    var bmi: Double? {
+        guard let h = heightCM, h > 0, let w = weightKG else { return nil }
+        let m = Double(h) / 100.0
+        return w / (m * m)
     }
 }
 
diff --git a/康康Tests/UserProfileTests.swift b/康康Tests/UserProfileTests.swift
index e588509..b1526db 100644
--- a/康康Tests/UserProfileTests.swift
+++ b/康康Tests/UserProfileTests.swift
@@ -17,6 +17,7 @@ struct UserProfileTests {
         let p = UserProfile()
         #expect(p.birthYear == nil)
         #expect(p.heightCM == nil)
+        #expect(p.weightKG == nil)
         #expect(p.biologicalSexRaw == "")
         #expect(p.bloodTypeRaw == "")
         #expect(p.allergies.isEmpty)
@@ -25,6 +26,7 @@ struct UserProfileTests {
         #expect(p.familyHistory.isEmpty)
         #expect(p.age == nil)
         #expect(p.sex == .undisclosed)
+        #expect(p.bmi == nil)
         #expect(p.hasAnyBasics == false)
         #expect(p.summaryLine == "")
     }
@@ -50,7 +52,32 @@ struct UserProfileTests {
         #expect(line.contains("岁"))
         #expect(line.contains("女"))
         #expect(line.contains("162cm"))
-        #expect(!line.contains("型"))  // 血型空,不出现
+        #expect(!line.contains("kg"))    // 体重空,不出现
+        #expect(!line.contains("型"))    // 血型空,不出现
+    }
+
+    @Test func summaryLineIncludesWeightWhenSet() {
+        let p = UserProfile(heightCM: 175, weightKG: 68.5)
+        #expect(p.summaryLine.contains("175cm"))
+        #expect(p.summaryLine.contains("68.5kg"))
+    }
+
+    @Test func summaryLineFormatsIntegerWeightWithoutDecimal() {
+        let p = UserProfile(weightKG: 70)
+        #expect(p.summaryLine == "70kg")
+    }
+
+    @Test func bmiNilWithoutBothHeightAndWeight() {
+        #expect(UserProfile(heightCM: 175).bmi == nil)
+        #expect(UserProfile(weightKG: 68).bmi == nil)
+        #expect(UserProfile().bmi == nil)
+    }
+
+    @Test func bmiComputedFromHeightAndWeight() throws {
+        let p = UserProfile(heightCM: 175, weightKG: 70)
+        let bmi = try #require(p.bmi)
+        // 70 / (1.75 * 1.75) = 22.857
+        #expect(abs(bmi - 22.857) < 0.01)
     }
 
     @Test func loadOrCreateReturnsExistingSingleton() throws {