... rheumatoid arthritis. Since he has turned 18 he hasn't been getting his monthly infusions on time. Sometimes he skips a month... He has the attitude that he doesn't need it... BUT as his mother I know how important it is for his body. He was diagnosed w/ JRA when he was 3yrs old. I'm wanting to know what effects this has on his body when he skips this treatment?? He works 4o hrs a week and lately has been very tired looking :(