the accident

6 years ago, when my father,my brother, and i was riding toward the park, my brother had an accident on the road.
At that time my brother who was riding a bicycle driven by my father suddenly shouted because his heels hit the radius of bicycle and suffered severe bleeding.
Then my father took my brother immediately to the nearest clinic and it turns out my brother's heel had to get stitches because of a rather large tear.
After the incident, my sister had suffered trauma to cycling again, but he kept trying and now he can ride again as before.