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# biologicalSex()

Reads someone’s biological sex from the HealthKit store.

```
func biologicalSex() throws -> HKBiologicalSexObject
```

## Return Value

An object containing information about someone’s biological sex.

## Discussion

For a list of possible values, see [`HKBiologicalSex`](/documentation/HealthKit/HKBiologicalSex).

If a person hasn’t set their biological sex or if they’ve denied permission to read the biological sex, this method returns an [`HKBiologicalSex.notSet`](/documentation/HealthKit/HKBiologicalSex/notSet) value.

> Handling Errors in Swift:
> In Swift, this method returns a nonoptional result and is marked with the `throws` keyword to indicate that it throws an error in cases of failure.
> 
> You call this method in a `try` expression and handle any errors in the `catch` clauses of a `do` statement, as described in [Error Handling](https://docs.swift.org/swift-book/LanguageGuide/ErrorHandling.html) in [The Swift Programming Language](https://docs.swift.org/swift-book/) and <doc://com.apple.documentation/documentation/Swift/about-imported-cocoa-error-parameters>.

## Topics

### Possible Values

[`HKBiologicalSexObject`](/documentation/HealthKit/HKBiologicalSexObject)

This class acts as a wrapper for the [`HKBiologicalSex`](/documentation/HealthKit/HKBiologicalSex) enumeration.

[`HKBiologicalSex`](/documentation/HealthKit/HKBiologicalSex)

Constants indicating the user’s sex.


---

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