Guide To The Risk Factors And Complications Of Hidradenitis Suppurativa
Obstructed Lymph Drainage

There may be obstructions to the lymph nodes during a flare-up of hidradenitis suppurativa. Many areas of the skin where flares are common, such as the armpits and the groin, contain many lymph nodes. If the scarring from the pustules is deep enough, it can interfere with the natural drainage system. This can lead to swollen genitals, legs, or arms, since the fluid has nowhere to go.
Although the disease is inflammatory, it is rare for the lymph nodes to feel swollen during a flare-up. This may be because it is hard to differentiate swollen lymph nodes from the infected bumps. Researchers have also found it challenging to pinpoint lymph node involvement using advanced ultrasound technology. Most researchers have concluded that the lymphatic system is only affected when a patient suffers a late-stage flare-up of hidradenitis suppurativa.