Diabetes with high blood sugar and poor control of the disease will have various manifestations on the skin. The following six symptoms are common.

1. Anterior tibial hyperpigmentation spots

Small brown, well-defined superficial atrophic circular depressions on the thigh and anterior tibia, 1cm in diameter or slightly smaller, with superficial Smooth, bilateral involvement, asymmetric, often asymptomatic.

Pretibial hyperpigmentation is the most common skin manifestation in diabetic patients, which is related to microvascular lesions caused by high blood sugar and affects vascular function.

2. Itchy skin

The higher the blood sugar level, the more obvious the itching symptoms. Most middle-aged and elderly diabetic patients will have skin itching symptoms, which mainly have two manifestations, local itching and generalized itching. The degree of itching is related to the blood sugar level of the patients. Relevant studies have shown that there is a positive relationship between the degree of skin itching and blood sugar levels in patients.

3. Skin infections

Bacterial infections are mainly Staphylococcus aureus infections, with symptoms such as boils, carbuncles, folliculitis, hidradenitis, etc., as well as underarms caused by fungal infections , groin, nail groove, interdigital and oral infection.

4. Skin hardening

Most common in middle-aged and overweight obese people, manifested as diffuse, non-pitting swelling and hardening of the skin, commonly found on the upper back, neck, and shoulders , occasionally on the chest, with reddish or pale skin, glossy, orange peel-like thickening of the skin.

5. Cheek flushing

It is more common in middle-aged and elderly male diabetic patients, which is characterized by cheek flushing and telangiectasia. With the improvement of blood sugar control, the dilated capillaries can return to normal.

6. Skin blisters

mostly occur on the feet and toes. The contents of the blisters are transparent without bleeding. It usually heals on its own in 2-5 weeks without leaving scars. The reason is related to neuropathy caused by poor blood sugar control.