If you are loosing hair at 24 years, that is most probably due to pattern hair loss or androgenetic alopecia which requires topical and oral medications. If medications are used within time, this will result in stopping the further hair loss and reversal of the hair loss as well. Said that proper diagnosis is mandatory before moving any further and a proper dermatology consultation is required for diagnosis and proper management

Strawberry legs generally caused by irritation of the hair follicles specially after waxing so first thing is adopting laser hair removal over waxing that will permanently solve the problem. Secondly If you want to try waxing then use soft wax and also apply coconut oil post waxing. Use Antiseptic like Cetrimide before waxing and mild topical steroids or moderately potent steroids can be applied after waxing process for 2-3 days so that it won't give rise to strawberry legs

Diode laser treatment is required for Pilonidal Sinus. Actually Pilonidal Sinus can be treated surgically only. The cavity needs to be removed surgically otherwise the problem will reoccur. After the surgery has been done a diode laser will clear the hairs over the back portion and that will result into complete remission

Stem Cell Banking Pros 

• Cord blood banking or stem cell banking is the process of collecting cells from the umbilical cord or placenta and preserving them for future use. It can help you save your child's and family members' lives.
• The recipient's body almost accepts it, and there are nearly zero chances of infection.
• The stem cell can be developed into multiple kinds of cells and can help to treat various types of health problems.
• A stem cell has no impact on a child's birth plan and will create no problems in the future.
• You can donate stem cells to hospitals in India as it can save people's lives, and it is usually free.

Stem Cell Banking Cons

• Storing stem cells is a bit hard, and their maintenance of them is also an expensive process.
• Once the stem cell is transferred to the person, no more cells can be harvested from that source.
• Stem cell preservation demands more investment to unite than bone marrow transfers.
• Not every human is eligible for donating their cells as the donation depends upon various factors such as their health issues.
  These are the umbilical cord stem cells advantages and disadvantages, hope this answers your query.

Yes. Of course he can go for knee replacement surgery. For this blood thinner has to be stopped 5 days before and should be replaced with some other medicine and after 5 days surgery can be done very successfully. This surgery is very safe and rewarding.

Stem cell treatment on knees may provide benefits such as pain relief and enhanced movement which may even postpone the use of surgery. However, the treatment is still relatively new with often variable results and potential risks such as infection or tissue damage. For thorough evaluation and specific recommendations, contact a stem cell specialized hospital in regenerative medicine is necessary.