Fofana Mamadou, 52 year, has neurofibromatosis on his body. Neurofibromatosis is a condition where nerve tissue grows tumors (or neurofibromas) which can result in unusual skin discolouration or bumps on the skin.'It doesn't hurt but it is, of course, not a beautiful sight. It started with a small blob on my back when I was 10. But then it started to get worse - on my arms and legs. And then, most terribly, I started growing blobs on my face. I can cover my body but I can't cover my face. I was ashamed of myself. People were laughing at me. My wife left me because she couldn't live with a man like me.'Guinea is one of the least developed countries in the world. More than 60 % of the population lives below the poverty line of USD 1 per day. Three quarters of the population is illiterate. Public healthcare is minimal and unaffordable for most people. This series of portraits is of people with various diseases and conditions who have come to seek help from the NGO Mercy Ship. Mercy Ship is an international charity which operates a hospital ship that provides free health care, community projects, health education and other programmes to people in developing world countries. The doctors and nurses on the ship work voluntarily.