How does phalangeitis cause?

summary

Purulent dactylitis refers to the suppurative infection of the subcutaneous tissue in the abdomen of the distal phalanx. The main pathogen is Staphylococcus aureus. At the beginning, the fingertip has needling pain and light, and then the finger abdomen is full of swelling. But with the further development of inflammation, how can fingertip inflammation be caused by tissue swelling? Next, I'd like to share my views with you.

How does phalangeitis cause?

First, there are many longitudinal fibrous cords between the skin of the palmar surface of the finger end and the periosteum of the nail, which classify the soft tissue into many closed cavities, which contain adipose tissue and abundant nerve endings. In the event of infection, the pus is not easy to spread around, so the swelling is not significant.

Second, the subcutaneous adipose tissue on the palmar side of the finger gathers into a ball, with fibrous septa between them, connecting the skin to the phalangeal membrane and tendon sheath. Therefore, when the infection is caused by injury, the infection spreads to the deep layer, and the abscess is not very significant. Because there is a fibrous septum under the finger's distal fingerprint, the subcutaneous cavity of finger pulp is closed, so the pus is not easy to spread around.

Third: refers to the abdomen skin tenacity, lacks the elasticity, refers to the end has the rich sense nerve ending, when the infection swelling, refers to the abdomen skin cavity pressure increases, oppresses the nerve ending, causes the intense pain. Because of the deep spread of infection, direct invasion of the distal phalanx, prone to phalanx osteomyelitis.

matters needing attention

1. In the units prone to pyoderma (such as some factories, agricultural machinery stations, primary schools, etc.), we should carry out extensive publicity and education on the prevention and treatment of pyoderma, carry out regular preventive examinations, and eliminate all pathogenic factors as far as possible. 2. Pay attention to skin hygiene, strengthen physical exercise and enhance skin resistance.