I have a purple dot on my lip . by the way i smoke so i don't know if that causes anything?

Venous Lake: Venous lakes manifest as dark blue-to-violaceous compressible papules caused by dilation of venules. They were first described in 1956 by bean and walsh, who noted their compressibility and predilection for sun-exposed skin, especially the ears of elderly patients.Although benign, venous lakes are important because of their mimicry of malignant lesions, such as melanoma and pigmented basal cell.