There are four main types of KS They are all more common in men than women.

Classic Kaposi's sarcoma

The first, called classic KS, develops without any weakened immunity, like many other types of cancer. It is very uncommon and is usually only found in older men of Mediterranean, Middle Eastern, or Jewish descent. This type of KS is usually only found in the skin, particularly on the lower legs and feet.

As it is a slow-growing cancer, people with early stage classic KS may not need any treatment.

Endemic or African Kaposi's sarcoma

The second type of KS, endemic or African KS, is found in parts of sub-Saharan Africa. It develops more quickly than classic KS and can affect men, women and children of all ages, although it is more common in men.

Aids-related Kaposi's sarcoma

The third type of KS, Aids-related KS, is the commonest of the four types, although it has become less common as the treatment of HIV and Aids has improved. As HIV infection develops, the immune system becomes weaker and the risk of developing KS increases.

Transplant-related Kaposi's sarcoma

The fourth type of KS usually occurs in people who have a weakened or damaged immune system. People who have had organ transplants, such as a kidney transplant or a bone marrow transplant from a donor, take medicines which suppress their immune system. This is to reduce the risk of their body rejecting the donated organ. Although rare, KS can occur in transplant patients who are taking these immunosuppressant drugs. This type of KS may improve if the immunosuppressant drugs are reduced or stopped.