Croatia international Lovren, who arrived at Anfield in 2014 from Southampton, is arguably one of the best defenders at the club and he has become an integral part of the first team since joining, making 83 Premier League appearances.
However, the 28-year-old, whose contract runs out in 2021, is putting himself through the pain barrier to feature for the Reds this season after revealing he is carrying numerous injuries.
"I have problems for the last two weeks with my whole body, it hurts," Lovren told Sportske Novosti. "I have problems with my back...and now I have hurt my Achilles tendon.
"I play, but I'm not training at all. I can't train. The biggest problem is my back. That's why I skipped the matches against Manchester City and Burnley in the Premier League.
"I have big problems with the left side of my body. I'm taking pills so I can play. I take five pills before every game."
Lovren is expected to start for Liverpool in Sunday's clash against Newcastle United at St James' Park.