So it's my 6th week after my open surgery for my mesh inguinal hernia and i've met with my doctor and he said i can lift weights now. not sure if there are moved i should avoid and how heavy can i lift. also how should i progress with heavier weight?

Listen to body: Start very slowly with light weights and wear supportive clothing and lifting belt even then as healing will still continue for some time. Listen to your body and be patient. Map out schedule that will allow gradual increase in reps and weight but over longer period of time and more gradually than prior to injury. May want to consult physical therapist for guidance