The main “prerequisite” for the appearance of congestive dermatitis is venous hypertension (increased pressure inside the vessels). It develops due to a violation of the function of venous valves, poor blood outflow, weak work or complete failure of the “venous pump” of the calf muscle.
Note: during movements, the leg muscles actively contract and squeeze the veins, “pushing” blood to the heart. This mechanism in medicine is called “muscle-venous pump”, or “muscle pump”.
Venous hypertension in turn leads to dilated capillaries and their increased permeability, leg edema, impaired skin nutrition and its chronic inflammation.
How does congestive dermatitis manifest itself?Congestive dermatitis can manifest itself with the following symptoms:- the appearance of redness on the legs, flaky patches or plaques (usually more on the inside of the ankle);
- Lichenification (thickening) of the skin;
- itching;
- hyperpigmentation of the skin;
- crusting, especially if a bacterial or fungal infection has set in.
It is also common to see marked varicose veins, impaired lymphatic outflow (secondary lymphedema), white scarred areas (due to microthrombosis), lipodermatosclerosis, and trophic ulcers.