Bruise Marks

Some people has their birthmarks, some of them has their moles. Yes i do have birthmark on my left hand but i also get bruise marks on my lower knees all the time, why? Because of the tub in our bathroom. Every time i go there and take a shower i always hit my knees on the tub because it is a little too high for me to jump my feet to get in it. I have been telling this to hubby and i told him that i want this walk in tubs because i know for sure it is easier for me to get in the tub without hurting myself. I can now imagine going to the tub and soaking myself and leaving there spotless.