Ask a Doctor: What causes male infertility?

Many men will only seek help after their partner has been found to have no fertility problem (Photo: Shutterstock)

A recent evaluation of all fertility data in Africa, including Kenya, showed sperm count to have declined by 72 per cent since 1965. The most affected age group was 30-49, although a significant number of those in their 20s presented with low sperm count.

The data points to decreasing fertility amongst men. Dr Patrick Gitobu Mburugu, a consultant urologist at Kenyatta National Hospital answered some of the common concerns around male fertility.