I had a 2500 FUE done two days ago. Today was getting something under my desk and lightly bumped my crown. There was no bleeding or no physical sign of any damage. Although when I shake my head really fast I feel a bit of pressure coming from the area where i bumped my head. Similarly after soaking my head in the bathtub per my doctor's requests I was LIGHTLY towel drying my donor area and may have grazed over a small part of my recipient area. Again there was no bleeding. Thanks!