What does it mean when you have numbness in your left foot in your penis area on a man

Hello. Thank you for posting.

Any disease that damages the nerves can affect feeling in the penis and other parts of the body.  Nerve damage is known as neuropathy. Diabetes and multiple sclerosis (MS) are among the diseases that can cause nerve damage and affect feeling in the penis. Peyronie's disease, a condition in which scar tissue called plaque forms in the penis, can also affect sensation. Penile numbness is common in men who cycle, especially those who ride long distances. It happens when the bicycle seat puts pressure on the perineum. 

The most common cause of foot (or toes) numbness is direct compression of the nerves of the foot from footwear from shoes. Numbness can occur because of injury to the foot, nerve damage (neuropathy), and poor circulation to the foot (as with diabetes and peripheral vascular disease) among other causes.  Your doctor can tell you more after an evaluation.

Helena