---
title: biologicalSex
framework: healthkit
role: symbol
role_heading: Type Property
path: healthkit/hkcharacteristictypeidentifier/biologicalsex
---

# biologicalSex

A characteristic type identifier for the user’s sex.

## Declaration

```swift
static let biologicalSex: HKCharacteristicTypeIdentifier
```

## Discussion

Discussion This type uses values from the HKBiologicalSex enum.

## See Also

### Related Documentation

- [HKCharacteristicType](healthkit/hkcharacteristictype.md)
- [HKCharacteristicTypeIdentifier](healthkit/hkcharacteristictypeidentifier.md)
- [HKBiologicalSex](healthkit/hkbiologicalsex.md)
- [HKBiologicalSexObject](healthkit/hkbiologicalsexobject.md)

### Characteristic identifiers

- [activityMoveMode](healthkit/hkcharacteristictypeidentifier/activitymovemode.md)
- [bloodType](healthkit/hkcharacteristictypeidentifier/bloodtype.md)
- [dateOfBirth](healthkit/hkcharacteristictypeidentifier/dateofbirth.md)
- [fitzpatrickSkinType](healthkit/hkcharacteristictypeidentifier/fitzpatrickskintype.md)
- [wheelchairUse](healthkit/hkcharacteristictypeidentifier/wheelchairuse.md)