I am a happily married man with a healthy sexual appetite.

I've been reading your articles on the topic of Intersex with great interest.

Dear Dr. G, I've been following your recent articles on ambiguous gender with interest. I wasn't aware of the condition of being intersex, where even the basic definition of male or female is unclear.

I WAS interested in your article last week about the ambiguous genitalia caused by excessive male hormones in girls.

I am a new mother in my mid-forties. Despite warnings from obstetricians before I got pregnant, I was determined to have a child.

Dear Dr. G, I understand you are featuring pollutants that can cause erectile dysfunction in July and I agree with your earlier articles highlighting the undisputed links between smoking and erectile dysfunction.

Dear Dr. G, I have an issue with my sexual relationship and am hoping you can help.

Dr G explains the relationship between smoking and ED.

The emergence of microplastics in different parts of the human body has raised more questions than answers, and the recent publications of the detection of microplastics in the human penis in men with ED has put the limelight back on this potential long-term catastrophe.

Dear Dr. G, I understand Dr. G is featuring paediatric urological conditions in June.

Circumcision is the surgical removal of the skin covering the glans penis, which has been practiced since the ancient Egyptian times, with the origin in religious rites.

I am a father of two boys and constantly worry about my children inheriting something I find extremely embarrassing.