React: Load component's CSS only when component is rendered

# MyComponent.js

import React from 'react'
import './MyComponentStyle.css'

export default class MyComponent extends React.Component {
   ....
}


# App.js

import React from 'react'
import ReactDOM from 'react-dom'
import { Route, Switch, BrowserRouter } from 'react-router-dom'
import MyComponent from './MyComponent'
import PageNotFound from './PageNotFound'

ReactDOM.render(
  <BrowserRouter>
    <Switch>
        <Route exact path='/mycomponent' component={MyComponent}/>
        <Route component={PageNotFound} />
      </Switch>
  </BrowserRouter>,
  document.getElementById('root'));

When i go to /mycomponent MyComponent renders with its css. But when i go to any other url, MyComponentStyle.css still can be seen in html's Head. Is there way to render respective components CSS only when component is rendered on its route?