Problems such as chronic illness (mumps in childhood which damaged testis), aging
your case), starvation, head injury, surgeries in
testicular area, cancers, infections, and alcoholism are also among the causes of low testosterone levels. Chronic use of steroids can cause a decrease in testosterone level. Please consult an endocrine specialist and an urologist. You can also increase the testosterone level by taking more of meat, salmon fish, yellow, red and green fruits and vegetables.