A lot of red blood on the top of the thighs may be caused by physiological factors and pathological factors (varicose veins and epidermal atrophy) and other reasons.
1. Physiological factors: such as growth lines, due to changes in body weight or changes in muscle and skin tension, so that the skin expands rapidly, the elastic fibers will be propped up due to the pre-existing manifestation of rippled red atrophic stripes, can also lead to a lot of red blood on the thighs.
2. Pathological factors:
(1) Varicose veins: due to venous dysfunction, especially venous valve insufficiency, the venous blood return of the lower limbs is blocked, and the stagnation in the blood vessels of the lower limbs leads to vasodilatation, causing varicose veins, which results in the formation of the symptom of a lot of red blood on the top of the thighs.
(2) Epidermal atrophy: when the thighs of local vascular inflammation, external rubbing a long time of strong glucocorticoids lead to epidermal atrophy, thinning, subcutaneous capillaries visible to the naked eye, appeared in the thighs above a lot of red blood.
If there is red blood on the top of the thighs, after excluding physiological factors, it is recommended to go to the hospital in time to find out the cause of the disease after targeted treatment.