Foot penetrating injury

　　1. Etiology

　　This disease is a complication of other systemic diseases. It is particularly common in neurological diseases, and its occurrence is also related to diseases such as atherosclerosis, diabetes, and leprosy.

　　2. Pathogenesis

　　This disease is a complication of other systemic diseases, particularly common in neurological diseases, such as syphilis of the central nervous system, spinal cord atrophy, spina bifida, syringomyelia, anterior horn gray matter inflammation of the spinal cord, and polyneuritis, etc. The occurrence of this disease is also related to diseases such as atherosclerosis, diabetes, and leprosy. Due to the neurotrophic lesions caused by these diseases, along with the loss of local sensation and pressure, ulcers are more likely to form.

　　It is prone to form ulcers or fistulas, affecting the healing process in the long term. In cases with local hyperhidrosis, the course of the disease is longer, and recurrence may occur after healing. It affects the patient's daily life, so it is important to seek timely treatment once symptoms are detected.

　　It is more common in males aged 30 to 50, particularly in the areas of the foot sole that are easily compressed, especially at the first and fifth metatarsophalangeal joints. The foot root may also be affected. Initially, small spots with keratin thickening appear at the affected site, resembling corns or calluses. Subsequently, there is mild redness and swelling, and under the thickened epidermis, the tissue gradually softens and necrotizes, forming ulcers or fistulas. The ulcers are funnel-shaped, with a foul smell and thin pus oozing out. The base has dark red granulation tissue, and the surrounding skin is thickened with keratin. The lesions often exist independently, and there may be hyperhidrosis near the affected area. In some cases, there may be local hyperhidrosis, with a longer course and recurrence after healing. It affects the patient's daily life, so it is important to seek timely treatment once symptoms are detected.

　　This disease is a complication of other systemic diseases, particularly common in neurological diseases, such as syphilis of the central nervous system, spinal cord atrophy, spina bifida, syringomyelia, anterior horn gray matter inflammation of the spinal cord, and polyneuritis, etc. Active treatment of the primary disease, early diagnosis, and early treatment are essential. Active treatment of the primary disease is the key to preventing this disease.

　　Determine the examination items based on the actual situation of the patient.

　　Common in men aged 30 to 50. Prone to the easily compressed areas of the sole of the foot, especially at the first and fifth metatarsophalangeal joints, the sole can also be involved. Initially, a small patch of hyperkeratosis appears at the affected site, resembling a corn or callus, followed by mild redness and swelling. Under the thickened epidermis, the necrosis gradually softens and becomes ulcerated or fistulated. The ulcer is funnel-shaped, with a foul smell and thin pus exuding. The base has dark red granulation tissue, and the ulcer is surrounded by thickened keratin. The lesion often exists independently. There is often a phenomenon of perspiration closure near the affected area, but there are also patients with localized hyperhidrosis. The course of the disease is longer, and recurrence may occur after recovery.

　　Common in men aged 30 to 50. Prone to the easily compressed areas of the sole of the foot, especially at the first and fifth metatarsophalangeal joints, the sole can also be involved. Initially, a small patch of hyperkeratosis appears at the affected site, resembling a corn or callus, followed by mild redness and swelling. Under the thickened epidermis, the necrosis gradually softens and becomes ulcerated or fistulated. The ulcer is funnel-shaped, with a foul smell and thin pus exuding. The base has dark red granulation tissue, and the ulcer is surrounded by thickened keratin. The lesion often exists independently. It can be diagnosed.

　　1. Timely detection and treatment of the primary disease, such as foot trauma, please pay attention to proper and reasonable treatment to avoid secondary infection.

　　2. Elevate the affected limb to improve blood circulation and promote wound healing.

　　3. Pay attention to strengthening nutrition, eat more high-protein, high-vitamin foods to ensure that the body has enough nutrition to promote wound healing.

　　I. Treatment

　　1. Treatment of systemic diseases.

　　2. Local application of 0.1% Erythromycin (Rifamycin) solution or 1:5000 potassium permanganate solution can be used to soak, keep the wound clean, and prevent secondary infection. External application of 5% mercuric chloride (white mercury) ointment or antibiotic ointment.

　　3. For those with long-term non-healing, necrotic tissue can be scraped off. Apply Gaojie Soft Cream externally.

　　II. Prognosis

　　Patients with localized hyperhidrosis may have a longer course of disease, and recurrence may occur after recovery.