Red stripes on the inner side of the arm may be atrophy lines, which is a normal physiological phenomenon, or may be caused by hives, phlebitis and other diseases.
1. Atrophic lines: atrophic lines, also known as expansion lines, fat lines, obesity lines, is due to excessive stretching so that the degeneration, fragile skin elastic fibers fracture, resulting in the appearance of linear atrophic depression in the skin performance, this disease occurs in the obese (weight loss) and pregnant women, the common parts of the affected areas for the waist and abdomen, the inner side of the upper arm and other parts of the initial lead-red, and then the skin color or white.
2. Urticaria: Urticaria is due to a variety of reasons that lead to temporary expansion of small blood vessels in the skin and mucous membranes and increase in permeability, localized edema of the disease, when scratching the skin, within a few minutes of scratching the stripes can be seen, if the scratching place for the inside of the arm, can be seen on the inside of the arm red stripes, the affected area can be accompanied by itching.
3. Phlebitis: Phlebitis is an inflammation of the blood vessel wall due to thrombosis, drug stimulation, mechanical stimulation, infection, etc. If it occurs on the inner side of the arm, it can appear as red streaks along the blood vessels.
After excluding physiological factors, if the symptoms of red streaks on the inner side of the arm persist, please go to the hospital as soon as possible to avoid delaying the condition.