There are conditions that a clinician has to be aware of, clots that form in the shallow veins, but are unprovoked. They have no reasons and the patient just comes with a problem. There's a known syndrome of clotting of your shallow veins in your belly. That is called superficial migratory thrombophlebitis. Migratory, because it changes the location from this vein to another. And believe it or not, that can be an early sign of pancreatic cancer. Now I'm talking about rare stuff, but it's just to say that it's not always a benign condition, it's not always just a nuisance and the pain, to have a shallow vein is actually something that can be meaningful. Also development of an unprovoked clott in your shallow veins could speak of a congenital hypercoagulable condition, meaning that your family is prone to form clots. And sometimes these clots happen in the deep veins, but sometimes it can happen in the shallow veins. And lastly, cancer like I explained you a few seconds ago, can actually make you hypercoagulable. And so these clots can present in 2 percent in the shallow veins in that you have to be also aware, but the vast majority of patients with clots in the shallow veins are related either to a trauma caused by a healthcare provider or related to varicose veins are very large and intuitively in large veins, we have more spaces and clot will form there. And so that condition can be corrected by removing the varicose veins.